On a recent episode of “The Dr. Oz Show,” green coffee bean extract — a supplement created from green (unroasted) coffee beans — was touted as a “fat burner that helps women lose weight.”
Oz tested the effects of the extract on 100 women. Half were given 400 mg of green coffee bean extract 30 minutes before breakfast, lunch, and dinner for two weeks; the other half were given a placebo. Participants were told to maintain their regular diets and to keep a food journal. The women who took the extract lost two pounds on average, while the placebo group lost an average of one pound
Since the episode aired, green coffee bean extract has become one of the most searched terms online. It’s mostly available in pill form, but earlier this summer Starbucks added it as part of a new line of low-calorie drinks, which are being promoted as a “boost of natural energy.”
However, few published studies have examined the extract’s effects on weight loss — and none over the long term.
In a recent small, 22-week study, researchers gave 16 overweight adults low doses of green coffee bean extract (350 mg, twice a day), high doses of the supplement (350 mg, 3 times a day), or a placebo (3 times a day) for 6 weeks each with a 2-week break of not taking the pills between sequences. Subjects were encouraged to be physically active, but no dietary changes were recommended.
Results of the study, funded by Applied Food Sciences, Inc. (a company that manufactures green coffee bean extract) and published in the journal Diabetes, Metabolic Syndrome and Obesity, found that subjects who took the extract lost about 18 pounds on average — more than 10 percent of their body weight. No adverse side effects were noted.
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Green coffee bean extract contains caffeine, a stimulant linked to weight loss. It also boasts high levels of chlorogenic acid, a polyphenol antioxidant that researchers speculate may promote weight loss by reducing the absorption of fat and glucose in the gut, and lowering insulin levels to improve metabolic function.
A 2011 review in the journal Gastroenterology Research and Practice found green coffee bean extract to lower body weight more significantly than a placebo in three studies. Although average weight loss —about 5.5 pounds — was moderate (perhaps because the doses were a modest 180 to 200 mg/day), researchers noted the poor quality of the studies and suggested more research before recommending the extract for weight loss.
While the extract appears safe, ingesting too much chlorogenic acid may raise heart disease risk since it elevate levels of the amino acid, homocysteine. In general, it’s recommended that adult coffee drinkers stick to a moderate amount a day, about 3 or 4 cups, or 300-400 mgs.
But, despite the green coffee bean buzz, it’s not worth shelling out money for weight loss, especially when results may be small — the one extra pound lost by the extract group in the Oz study is barely even worth noting — and long-term risks uncertain. Instead, stick to what we know helps with long-term weight loss: a sustainable, enjoyable diet paired with daily physical activity.
It’s boring, but safe and effective.
Have you tried green coffee bean extract? Any luck? Tell us on Facebook!
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- Is Green Coffee Extract Safe? Answers That Might Shock You
- Can Green Coffee Bean Extract Help You Lose Weight?
- Can a Cup of Green Coffee Help You Lose Weight? You’ll Be Surprised!
- Health benefits of green coffee beans
- Top Green Coffee Bean Supplements
- NatureWise Green Coffee Bean Max Potency Extract
- Green Coffee Plus by Vita Balance
- SVETOL Green Coffee Bean Extract by Sports Research
- Purely Inspired Green Coffee Bean, Weight Loss Supplement, Non-Stimulant
- Jarrow Formulas Green Coffee Bean Extract
- NOW Green Coffee Diet Support
- Health Plus Prime Green Coffee Bean Extract
- Nature Berg Natural Raw Green Coffee Bean Extract
- All-in-One Weight Diet Loss Pills & Appetite Suppressant Bundle by GreeNatr
- Potent Organics 100% Pure Green Coffee Bean Extract: Standardized To 50% Chlorogenic Acid
- BulkSupplements Green Coffee Bean Powder
- Genesis Today, Green Coffee Bean with Svetol
- Are there side effects to green coffee bean supplements?
- Green Coffee
- What is Green Coffee Bean Uses and Benefits?
- what is green coffee extract
- Weighing In: Green Coffee Bean Extract – A Potential Safe and Effective Weight Loss Supplement?
- Green Coffee Bean Extract
- Best Green Coffee Bean Extract
- 1VitaBalance Green Coffee Plus
- 2NatureWise Green Coffee Bean Extract 800
- 3Sports Research SVETOL Green Coffee Bean Extract
- 4aSquared Nutrition Pure Green Coffee Bean Extract
- 5Nature’s Craft Natural Raw Green Coffee Bean Extract
- 6Bio Sense Pure Green Coffee Bean Extract
- 7NutriONN Pure Green Coffee Bean Extract
- 8Supreme Potential Pure Green Coffee Bean Extract
- 9Evolved Advantage Green Coffee Bean Extract
- 10Natrogix Pure Natural Green Coffee Bean Extract
- How We Rank
- Side Effects
- Recommended Dosage
Is Green Coffee Extract Safe? Answers That Might Shock You
Throughout the course of 2012, the supplements market has become flooded with a brand new weight-loss supplement: green coffee extract (or GCE). Green coffee extract is derived from unroasted coffee. But is it safe? The answer is a resounding we just don’t know.
According to scientists, unroasted coffee is rich in chlorogenic acid – a compound that is degraded during the roast process. Chlorogenic acid “thought” to have health benefits and contribute to weight loss. The health benefits are based on what some might consider shaky evidence. Really, is weight loss worth the risk?
The weight-loss industry sells over $100 million dollars in products per day. So the race to put out the hot new product is fast and furious. At such a rapid clip, how can we be sure these products are safe? Big government? Think again. The Food and Drug Administration has made a number of approval mistakes in recent years. Wonder drugs, miracle cures, and countless diet pills get pulled from store shelves all the time.
Startling Side Effects
According to WebMD, GCE has several scary side effects such as:
- Upset Stomach
- Increased heart rate
- Increased breathing rate
- Ringing in the ears
- Irregular heartbeats
- Calcium deficiencies
- Magnesium depletion
- Worsened bleeding disorders
- Flushed face
- Muscle tension
- Trouble concentrating
Stay away from GCE!
A Warning To Mothers
Are you pregnant or breast feeding? Forget about green coffee extract. WebMD states that’s there is simply not enough information to know if green coffee extract is safe for babies. Would you rather rest easily knowing that you’re avoiding a potentially dangerous and deadly weight loss supplement, or gamble with the life of your infant child? The research isn’t there, and many doctors remain wary of green coffee extract.
Green Coffee Extract and the Mainstream
Starbucks has released a green coffee extract energy drink that’s ladened with sugar. Dr. Oz covered green coffee extract in an entire episode. He deemed it an effective method of weight loss. But is Dr. Oz trustworthy? The episode felt like a thirty minute infomercial.
How do we know that Dr. Oz isn’t on the take from GCE middlemen? It won’t be until 2013 that Big Pharma will have to disclose which doctors they give gifts and payments to. Big Pharma has paid over $300 million dollars to doctors.
Just look at all of the magazines Dr. Oz has been featured in championing GCE and judge for yourself.
Caffeine: How Much Is In GCE anyway? Answer: It Depends.
According to Shape.com, green coffee extract might contain any amount of caffeine due to lack of supplement standardization. Manufactures aren’t required to follow a specific formula, so one bottle of GCE might have outrageously dangerous levels of caffeine while another won’t. This can cause a whole host of medical problems. Perhaps the scariest problem is interactions with other drugs:
Caffeine-based supplements can react with other supplements. For example, taking one with another stimulant (like guarana or mate) can trigger a synergistic effect that could increase blood pressure to dangerous levels. A high caffeine intake can also trigger the loss of calcium and magnesium. And there’s a long list of prescription medications that interact with caffeine, from diabetes and blood pressure drugs to meds used for depression.
What About The Quality?
With roasted coffee, there are standards in terms of quality and acceptability. Poor quality green coffee is ripe with defects such as mold, insect damage, foreign objects, and fecal matter. There is no standard of quality with the ingredients used in green coffee extract. Only the manufacturer can attest to the standards they employ – but are they to be trusted? Is the green coffee used in the manufacturing of GCE dangerous? The answer is anyone’s guess.
The only thing we know for certain is to consult your physician before starting any weight loss plan. Don’t live your life based on fear – if green coffee extract sounds right for you, we recommend you follow these steps to keep you and your family safe:
- Make sure the manufacturer has a solid reputation in the industry.
- Ask if they have standards in place for green coffee quality.
- Ask your doctor!
- If you’re going for GCE, skip the sugar found in combo drinks.
- And remember: Losing weight is great, but vanity’s not everything. Cut yourself some slack.
Can Green Coffee Bean Extract Help You Lose Weight?
You may have heard of green coffee bean extract-it’s been touted for its weight-loss properties recently-but what exactly is it? And can it really help you lose weight?
Green coffee bean extract simply comes from the unroasted seeds (or beans) of the coffea plant, which are then dried, roasted, ground, and brewed to produce coffee products. Mehmet Oz, M.D., of the Dr. Oz Show, decided to find out, so he conducted his own experiment by enlisting 100 women who were overweight or obese. Each woman received either a placebo or a green coffee bean supplement and were instructed to take 400mg capsules three times per day. According to Dr. Oz, the participants were instructed not to change their diet and also to keep a food journal to record everything they ate.
So does green coffee extract work? Yes, says Dr. Oz. After the two weeks, the participants who consumed the green coffee bean extract lost, on average, two pounds, while the group of women who took the placebo lost an average of one pound.
However, this doesn’t mean the green coffee bean extract caused the weight loss. It’s important to note that compounding variables might have influenced the results. For example, though they were instructed not to change their diet, the women may have been more aware of their diet since they were keeping a food journal.
If you’re interested in supplementing your weight-loss efforts with green coffee bean extract, it’s important to pick the right kind. The supplement you take should include chlorogenic acid extract, which may be listed as GCA (green coffee antioxidant) or Svetol. Dr. Oz notes on his website that the capsules should include at least 45 percent chlorogenic acid. Any less than that amount hasn’t been tested in studies that focus on weight loss. One example of a product that contains green coffee extract is Hydroxycut (pictured below).
RELATED: For more on green coffee bean extract, read what our Weight-Loss Coach has to say about the weight-loss supplement.
What do you think of this news? Are you interested in taking a green coffee bean extract to supplement your diet and exercise? Let us know in the comments below!
- By Alanna Nuñez
Can a Cup of Green Coffee Help You Lose Weight? You’ll Be Surprised!
A hot cup of cappuccino is a favourite pick-me-up for many. Its smoky aroma and the carefully set foam on the brink of the cup call out for a quick sip that makes you feel instantly energized and charged up. As a coffee lover, you may think you know everything about it but that may not be the case. A new variety of coffee has been creating a lot of buzz and if you happened to have missed it, we’ll update you. Green coffee beans are seeds of the coffee fruits that are not roasted unlike regular coffee. These coffee beans have a higher amount of cholorgenic acid which is believed to have numerous health benefits. The amount of this compound reduces as you roast the coffee beans to make them into what we generally consume.
According to Dr. Simran Saini from Fortis Hospital, “Chlorogenic acid in green coffee acts as an antioxidant. It helps in controlling high blood pressure, aids weight loss and maintain blood sugar levels in the body.”
Green coffee has particularly become popular for its weight loss benefits just like green tea. This light coloured brew that is enjoyed without milk or sugar and has a very mild flavour is known to help you lose weight in many ways. A study published in the Indian Journal of Innovative Research and Development (IJIRD) indicates that the miracle active ingredient called chlorogenic acid found in green coffee helps in weight loss. Since the beans are not roasted the compound retains its potent properties that benefit the body. It helps in melting the unwanted fat and thus, aids weight loss. Not just that, here are five amazing weight loss benefits of drinking green coffee regularly you may have not known.
(Also read: Green Coffee Benefits: Just Another Healthy Reason to Drink Up)
1. Boosts your metabolism
The presence of chologenic acid in green coffee is known to boost your metabolism. It helps increase the Balsamic Metabolic Rate (BMR) of our body, which further minimizes the release of glucose from the liver into the bloodstream. To fulfill the requirement of glucose, the body starts burning the excess fat stored in the fat cells, eventually resulting in weight loss.
2. Curbs your appetite
If you’re someone who constantly falls for sudden hunger pangs and ends up binging on unnecessary calories, sip some green coffee. Again, the cholorogenic acid acts as a natural appetite suppressant. It helps control cravings and prevents us from overeating.Regular green coffee consumption is also known to block fat and carb absorption in the body.
3. Improves blood circulation
Blood carries out several critical functions in the body including transporting oxygen to the cells and at the same time, it removes the gases and toxins from the cells. Any blockages or a sluggish flow of blood may cause inactivity and lead to fatigue and lethargy that can affect your metabolism and in turn, slow down the fat burning process. A cup of green coffee can be a great energizer to help your body burn fats and calories faster.
4. Burns fat
Pure green coffee beans help in raising the fat burning capability of our body. It increases the releases of fat burning enzymes in the body. Further, it acts as a great natural detoxifier for the liver. It cleanses the liver and removes bad cholesterol and unnecessary fats which eventually perks up our metabolism.
5. Decreases the absorption of sugars
Consumption of green coffee decreases the absorption of sugars in your small intestines which means that less sugar is available to be stored as fat and more calories are burnt helping you lose those extra pounds.
When is the best time to have green coffee?
The best time to have green coffee is right after your meals. This is because after eating your blood sugar levels generally spike up due to the consumption of carbohydrates or proteins. The excess sugar generated when food is broken down during digestion is stored as fat in the body. Drinking green coffee helps in maintaining the blood sugar levels and prevents sudden spikes. It will also help you stay energetic for a longer period.
You can find green coffee in powdered form that just needs to be mixed with hot water and is ready to be consumed. It is usually enjoyed on its own without any additions but you may add a dash of honey or a sprinkle of cinnamon. Green coffee may benefit your weight loss routine in many ways but it cannot help you lose weight all by itself. A good weight loss plan needs to be a mix of a balanced diet and regular exercise but green coffee can definitely play a great supporting role and help you reach your goals.
Health benefits of green coffee beans
Posted January 14, 2018 by mduckitt in 100 Ways to Energy 6707
Green coffee beans have become increasingly popular as of late, in fact, they’re now one of the most popular supplements and weight loss products around. They’ve also been associated with a host of health benefits, from protecting the heart and lowering the risk of neurological diseases, to anti-ageing effects and more.
These green-hued beans are roasted seeds of the plant Coffea Arabica. During roasting, the natural antioxidants present in the coffee beans are removed, which is not at all beneficial for our health, but these beans do not undergo that same procedure and are actually considered as highly beneficial for our overall health, in addition to helping to support weight loss efforts.
While there is some debate as to whether the benefits are worth risking the side effects, which we’ll discuss a bit later, there is evidence to believe green coffee may be very beneficial for those who can tolerate caffeine.
1. Powerful Antioxidants
Green coffee beans are loaded with antioxidants, provided they’re unprocessed, as mentioned. Those powerful antioxidants help to lessen the damaging effects of harmful free radicals in the body and help support overall health. Several studies have confirmed that raw and unprocessed green coffee beans contain 100% pure Chlorogenic Acid (CGA), which is essentially an ester of caffeic acid with strong antioxidant properties.
Many experts believe that free radical damage is a factor in the development of a host of diseases, including cancer and atherosclerosis. Antioxidants like those found in green coffee beans may play an important role in either managing or preventing not only some cancers and heart disease, but Alzheimer’s disease, macular degeneration, arthritis-related conditions and more.
2. Normalizing Blood Sugar
Thanks to the high level of antioxidants and other healthful compounds in green coffee beans, they can also help lower inflammation, which offers positive effects on blood sugar. It may be helpful for lowering glucose levels, which, in turn, may lower the risk of developing type 2 diabetes. Research published in the Evidence-Based Complementary and Alternative Medicine journal demonstrated that a decaffeinated green coffee bean was able to reverse the negative effects of a high-fat diet, by reducing fat accumulation and insulin resistance.
Another study, conducted in 2007 out of Oslo Norway and published in the Journal of International Medical Research showed that chlorogenic acid enriched coffee could potentially reduce the absorption of glucose in obese people.
In 2014, the Journal of Molecular and Cellular Biochemistry published a report that looked at the effects of chlorogenic acid, caffeine, and coffee on diabetic rats. The study showed that a green coffee bean extract may help to prevent brain disorders connected with diabetes, in addition to having to have the ability to improve memory and reduce anxiety, better than just coffee or caffeine alone.
3. Aiding Fat and/or Weight Loss
Green coffee beans were initially thrust into the spotlight when researchers discovered its ability to aid with weight loss. While it’s no miracle for losing weight, there is evidence to suggest it can help enhance the results when consumed while following a healthy diet and engaging in regular exercise. That’s because of the substance chlorogenic acid, which is believed to be responsible for those effects. Chlorogenic acid is highly absorb-able and known to aid the body in burning glucose and stored fat for energy.
Caffeine plays a part too, in fact, a number of studies have shown that it helps boost the metabolism, anywhere from 3 to 11 percent. As caffeine provides a stimulant effect on the central nervous system, drinking it raises the metabolism and increases the oxidation of fatty acids, aiding one’s ability to lose weight or maintain an already ideal weight. In fact, caffeine is actually one of only a very few natural compounds that have been scientifically proven to aid fat burning. One study, published in the Journal of Physiology and Behavior, looked at people who drank caffeinated and decaffeinated coffee. They found that caffeinated coffee drinkers had a 16% increase in metabolism over the decaffeinated group.
Still, the main active ingredient in green coffee beans is believed to be its chlorogenic acid. Some research on humans has suggested that it can decrease the absorption of carbohydrates from the digestive tract, which lowers blood sugar levels and insulin spikes, which means, consuming a green coffee bean extract is similar to following a slightly lower carb diet.
In a 2016 animal study out of South Korea, published in the Asian Pacific Journal of Tropical Medicine, the effects of green coffee bean extract were tested on obese mice, and the researchers discovered that it “significantly decreased body weight gain, liver weight and white adipose tissue weights with regulation of adipose tissue lipolysis hormones, like adiponectin and leptin.”
4. Protecting Heart Health
As hypothesized in animal studies, the chlorogenic acid in green coffee beans appears to reduce glucose absorption, an effect that could potentially provide a protective role in diabetes management, explain the effects on body weight, and even positively affect the blood vessels to offer a major positive impact on heart health. In both human and animal studies, it’s been found to lower blood pressure in those with hypertension.
According to WebMD, there has also been research that found people with mild high blood pressure who take a specific green coffee extract, 93 mg or 185 mg daily, have reduced blood pressure in less than a month.
5. Anti-Aging Abilities
We also have chlorogenic acid to thank for the high level of antioxidants in green coffee beans which are known to slow the effects of ageing. As you grow older, your face is the first area to exhibit the visible effects of ultraviolet radiation, or UV, which can manifest in wrinkles, fine lines, sagging, discolouration and dry skin. Those unwelcome changes reflect the deteriorating condition of the components that make up the inner layer of the skin, which is a combination of the fibrous protein collagen and elastin, along with water-binding glycosaminoglycans. Together, these compounds form a strong, resilient framework of connective tissue that gives the skin its elasticity and strength, for the appearance of more vibrant, younger looking skin.
The UV rays from sunlight wreak havoc on the skin by generating the production of free radicals, which break down the vital components of the skin’s framework, and eventually, it results in those tell-tale signs of ageing. Green coffee beans help to rejuvenate it again, to improve the texture and firmness of the skin as well as reducing redness and the appearance of wrinkles.
6. An Energy Boost
The reason most people drink coffee is to get that energy boost, and green coffee beans are no different, as they also contain the stimulant known as caffeine which can increase energy levels in addition to aiding weight loss by boosting the metabolism. Caffeine reaches the brain quickly, blocking an inhibitory neurotransmitter known as adenosine, while triggering the increase of feel-good hormones like dopamine, and acts as a central nervous system stimulant, with the most noticeable effect being alertness. It also can lead to increased focus, motivation, and a more positive outlook. More obviously, it helps one to feel more awake and less tired, which is why it’s also a common ingredient in medications to treat drowsiness.
7. Good for you
McNab’s SuperCharge Original Energy drink is packed with green coffee beans providing you with a ready-made source of refreshing energy.
Tags: benefits, energy boost, green coffee beans, health© Photographed by Alexandra Gavillet. Refinery29
As the cold brew versus iced coffee debate steeps on, there’s another coffee-adjacent product that’s trendy in its own right, especially among health-conscious people: green coffee extract. Although they’re all made from the same bean, green coffee extract is nothing like the other two — both in how it tastes and the way it’s manufactured.
While cold brew is made by steeping coffee beans in room-temperature water for hours, green coffee extract is essentially compounds that have been taken out of a green coffee bean, explains Luis Cisneros-Zevallos, PhD, a professor in food science and horticulture at Texas A&M University. Technically, all coffee beans start green when they’re harvested. Coffee is then typically roasted and processed with all different flavors before it ends up with your barista. “In the case of green coffee extract, what they do is instead of roasting that green coffee, they take the green beans and extract all the different components that are present in the bean,” he says.
Read more: Heavy coffee drinkers drink longer than non-coffee drinkers, says study (Elle)
As it turns out, untreated green coffee beans contain lots of good-for-you compounds, including caffeine. Specifically, green coffee beans contain very high amounts of a substance called chlorogenic acid, which has an antioxidant effect on the body, Dr. Cisneros-Zevallos says. Studies suggest that chlorogenic acid present in the green coffee can help with weight management, and may help prevent metabolic disorders such as diabetes, and even protect against heart disease, he says. Manufacturers have figured out ways to extract this good stuff in concentrated amounts, and turn it into a powder or supplement.
The thing is, green coffee extract doesn’t really taste like anything — and definitely not coffee, at least. Sure, you could add a supplement or powder to a regular drink to reap the benefits, or get a flavored drink that uses green coffee extract (Starbucks Refreshers contain it) for energy, but you’re not going to get the smooth java taste many people long for in the morning. “It’s not going to get you that kind of pleasure, but at the same time, it will provide you with a benefit,” Dr. Cisneros-Zevallos says.
Gallery: The healthy reasons for drinking coffee (24/7 Tempo)
With green coffee extract, you also have to be mindful of how much you’re consuming. Dr. Cisneros-Zevallos says there is a limit to the amount you can safely have. Problem is, based on the current research, it’s unclear how much you’d have to consume to experience the benefits, and we’re not entirely sure what the side effects of taking too much would entail. (On top of that, dietary supplements aren’t vigorously regulated by the Food and Drug Administration, so there’s no telling how much green coffee extract you’re taking.) At least with cups of coffee, it’s somewhat easier to track how much you’re sipping, and when you’ve gone overboard with the caffeine.
Whether you stick to cold brew or switch to green coffee bean extract is up to you. But it’s nice to have another good-for-you caffeine drink option out there — and one that’s a little less polarizing.
MSN are empowering Women In Sport this summer. Find out more about our campaign and the charity fighting to promote the transformational and lifelong rewards of exercise for women and girls in the UK here.
How can you lose weight naturally and feel energetic, too? Just take one of the best green coffee bean supplements. This is one of the most popular weight loss aids on the market. But what makes green coffee beans different from just drinking coffee?
Green coffee bean extract is rich in chlorogenic acid. This component minimizes the absorption of carbohydrates during digestion. It also lowers blood sugar and reduces insulin spikes. In animal studies, chlorogenic acid lowers the amount of fat stored in the liver and helps the body burn it faster. It also improves triglyceride levels.
Next, green coffee beans are full of other antioxidants to keep your heart healthy. And of course, they have caffeine. The caffeine itself boosts the body’s metabolism by up to 11%.
Once the beans are roasted to make coffee, most of the chlorogenic acid and antioxidants disappear.
Randomized clinical studies revealed that people taking 200 mg of green coffee bean extract in instant coffee for 12 weeks lost an average of almost 12 pounds. They didn’t change their diet or exercise during that time. Moreover, their body fat dropped by 3.6%.
Top Green Coffee Bean Supplements
If you’re ready to give one of the top green coffee bean supplements a try, check out our reviews below. We hand-picked and researched the best we could find to help you with your shopping.
NatureWise Green Coffee Bean Max Potency Extract
This product from NatureWise offers 800 mg per two-capsule serving of green coffee bean extract. This includes 50% chlorogenic acids. Compare that to the normal amount of 7% found in regular green coffee beans. The reason for the difference is a patented ingredient called GCA, concentrated green coffee antioxidant.
You might be wondering if this product will give you the jitters. NatureWise says that it won’t because they’ve decaffeinated it. And they packed it into a vegetable cellulose capsule with organic rice bran to keep it vegan-friendly.
Green Coffee Plus by Vita Balance
Green Coffee Plus also contains 50% chlorogenic acid, making it highly refined and potent. Plus, it’s manufactured in an FDA-registered facility that follows GMP guidelines. To get the results you want, just take two capsules each day with a meal.
Unlike some sellers online, Vita Balance offers a discount when you purchase multiple bottles. For example, if you choose the option for three bottles, you’ll get another one free. And each bottle contains 60 capsules or a one-month supply.
SVETOL Green Coffee Bean Extract by Sports Research
Sports Research uses the trademarked green coffee bean extract called SVETOL. This ingredient was proven to work in eight clinical studies. It’s decaffeinated to contain less than 2% caffeine to avoid the jitters. In addition, it’s guaranteed to contain 45% chlorogenic acids and 50% polyphenols.
Their product features 400 mg of this patented green coffee bean extract. It’s blended with 800 mg of virgin organic coconut oil plus BioPerine inside liquid softgels. The BioPerine is an extract of black pepper fruit that makes other ingredients easier to absorb. In fact, the company says it only takes 3 to 4 minutes to dissolve the softgels once you swallow them.
Purely Inspired Green Coffee Bean, Weight Loss Supplement, Non-Stimulant
Each tablet made by Purely Inspired contains green coffee with 45% chlorogenic acids. The recommended serving is three tablets twice a day, half an hour to an hour before the two largest meals you consume.
Each one is third-party tested and verified for purity and quality. Besides the coffee extract, the label reveals excipients like magnesium stearate and silicon dioxide. But if you hate taking a lot of pills, you might find a more convenient product elsewhere.
Jarrow Formulas Green Coffee Bean Extract
Jarrow uses green coffee bean extract standardized to contain 50% chlorogenic acids. Each vegetarian capsule contains 200 mg plus silicon dioxide and magnesium stearate. Plan on taking one capsule twice a day before meals.
NOW Green Coffee Diet Support
NOW is a family-owned business with manufacturing facilities in the US and Canada. These facilities contain testing labs that ensure potency and purity. But take note that even though this supplement does not contain allergens like gluten or soy, they are made where those ingredients appear in other products.
The NOW Green Coffee Diet Support capsules feature 400 mg with 50% chlorogenic acids and a maximum of 12 mg of naturally occurring caffeine.
Health Plus Prime Green Coffee Bean Extract
Health Plus Prime says they are careful to avoid both non-GMO ingredients and allergens. Their formula provides 800 mg of 50% chlorogenic acid green coffee bean extract. It’s made in an FDA-approved facility in the USA that follows cGMP standards. Plus, they offer a 100% money-back guarantee.
Nature Berg Natural Raw Green Coffee Bean Extract
Nature Berg puts 800 mg of Svetol with 50% CGA (green coffee antioxidant) in each cellulose capsule. The only other ingredient is magnesium stearate from vegetable sources.
We’ve mentioned magnesium stearate a few times as it’s a commonly used excipient. It’s also known as stearic acid, a saturated fat that naturally appears in some foods. Manufacturers blend their primary ingredient with it in order to make it easier to form pills and fill capsules. The small amount in dietary supplements is not considered a risk to health.
All-in-One Weight Diet Loss Pills & Appetite Suppressant Bundle by GreeNatr
GreeNatr combines two powerful weight loss ingredients in one supplement: Garcinia cambogia and green coffee bean extract. Together, they raise your energy level, burn more fat, help you feel full for longer, and speed up weight loss.
You can check out our reviews of the best Garcinia cambogia diet aids to learn more about this powerful natural appetite suppressant that boosts the effects of green coffee beans.
Potent Organics 100% Pure Green Coffee Bean Extract: Standardized To 50% Chlorogenic Acid
Potent Organics puts 60 servings in the bottle but gives you 90 days to try the product. If you’re not happy with it, you can get a full refund. One veggie cap a day provides 800 mg of 50% chlorogenic acid. Moreover, it’s encapsulated in an American facility that follows current Good Manufacturing Practices.
BulkSupplements Green Coffee Bean Powder
Are you tired of swallowing pills? Then get this green coffee bean powder from BulkSupplements. You can stir it into your coffee or another beverage or soup. Just be sure that you have a milligram scale available for accurate measurement. You can take between 50 to 200 mg up to three times a day.
But never consume more than 200 mg in a serving or 600 mg total in one day. Although the powder is the lab-tested for purity and contains 50% chlorogenic acid, it also has caffeine which can cause an overdose.
The company also notes that this should never be given to animals as they can’t metabolize caffeine– it’s poisonous to them.
Genesis Today, Green Coffee Bean with Svetol
Genesis Today combines two types of green coffee bean extract in their formula. The first is 200 mg of clinically-proven Svetol with 50% total polyphenols and 45% chlorogenic acids. Then there is 600 mg of regular green coffee bean extract with 45% chlorogenic acids. Finally, everything is packaged in a vegetable capsule.
There are two capsules in each serving, which means that the bottle contains only a 15-day supply. On the other hand, they avoid silica, magnesium stearate, maltodextrin, gelatin, and even microcrystalline cellulose.
Are there side effects to green coffee bean supplements?
The number one side effect experienced when taking green coffee bean supplements appears to be the same as when consuming caffeine: the jitters, rapid heartbeat, and anxiety. You might also experience diarrhea. If you are sensitive to caffeine, purchase a supplement that’s been decaffeinated.
Green coffee bean extract could also have an adverse effect if you’re taking blood thinners because it can increase bleeding. It may affect blood sugar levels or worsen osteoporosis. And any caffeinated supplement could affect persons with glaucoma.
To avoid unpleasant side effects, start slow. Obtain a supplement that divides the recommended dose into multiple capsules or tablets. For example, instead of 800 mg, take just 200 or 400 for the first couple of days to see how you react. We know you’re excited to try out this weight loss supplement, but it’s important to take it easy if you’re new to this product. It’s also a smart idea to speak with your doctor.
You can reap the benefits from green coffee beans by taking a daily supplement with standardized ingredients. The antioxidants, polyphenols, and chlorogenic acids can help you have more energy and burn more fat. We hope our reviews helped you find the best fit for your needs today. And we wish you the best of health and success in your goals.
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- Svetol Product Information Pack. Naturex, Avignon, France. March 2013. Available at: http://greencoffee.gr/wp-content/uploads/2013/12/GA501071_PRODUCT-INFO-PACK_04-06-2013.pdf (accessed July 6, 2015).
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What is Green Coffee Bean Uses and Benefits?
Green coffee extract is a supplement and food product derived from green coffee beans. The difference between green coffee beans and regular coffee beans is simple: coffee beans are naturally green, and turn brown when they are roasted. Roasting the coffee beans removes most of the active ingredient in green coffee bean extract: a molecule known as chlorogenic acid.
Supplementing with chlorogenic acid may have the same effects as using green coffee extract; however, research seems to support that chlorogenic acid is better absorbed through green coffee extract than on its own.
Benefits of Green Coffee Bean
Green coffee bean is promising as an energy supplement. There are two active ingredients in green coffee bean extract: caffeine and chlorogenic acid. Caffeine is a well-known and well-researched metabolism and energy booster. The combination of these two ingredients is much more effective than caffeine (or regular coffee) alone.
Clinical research suggests that green coffee extract may help with weight loss. Adults with mild to moderate obesity who consume green coffee extract lost significantly more weight than those consuming regular coffee.
Obesity can be influenced by both genetic and environmental factors. The prevalence of obesity has largely increased over the past few decades due to lifestyle shifts. Obesity is clinically diagnosed as having a BMI of over 30, and usually is accompanied by any number of detrimental health conditions. It is an increasingly common condition that currently affects more than 30% of the population, with over 50% of Americans considered to be either overweight or obese.
There is preliminary clinical evidence that supports the role of green coffee extract in significantly reducing blood pressure in adults with mild, untreated hypertension. Blood pressure is the force of the blood pumping against the artery walls. With high blood pressure, repeated stress on the artery wall can cause damage and health problems such as heart disease. About 29% of adults in the US have high blood pressure. Other traits that green coffee extract may be beneficial towards include: hyperhomocysteinemia and metabolic rate.
what is green coffee extract
Sources of Green Coffee Bean
Green coffee beans are actually grown on a bush, usually in warm or tropical regions. The vast majority of coffee beans available in the US are already roasted – which means they are no longer the green coffee beans used for supplementation. Green coffee beans are available in raw, unprocessed form or as an extract in supplement (capsule) form.
Do I Need A Green Coffee Bean Supplement?
Since green coffee bean is not necessary for human bodily functions, supplementation is never absolutely necessary. Can you benefit from green coffee bean supplementation? If you are overweight, obese, or have hypertension, you may experience positive health benefits from green coffee bean.
How Much Green Coffee Bean Do I Need?
There is no RDA (recommended daily amount) for green coffee beans or its extract. Green coffee bean supplements are also available in a variety of chlorogenic acid strengths, as well as the option of additional caffeine. The optimal dosages for chlorogenic acid and/or green coffee bean extract have not yet been determined. However, effective and safe dosages based on available research is as follows:
- 10% Chlorogenic Acid Supplement: 1200-3000mg daily
- 20% Chlorogenic Acid Supplement: 600-1500mg daily
- 50% Chlorogenic Acid Supplement: 240-600mg daily
What are the side effects of Green Coffee Bean?
Green coffee bean extract is generally well tolerated, and mild side effects are usually associated with caffeine. These side effects include headache, diuresis (excess urine production), anxiety, insomnia, and agitation. Research has not yet evaluated the safety and effectiveness of green coffee bean during pregnancy, so do not use while pregnant.
Are There Any Medications or Supplements I Shouldn’t Take With Green Coffee Bean?
Known interactions with green coffee bean extract are related mostly to its caffeine content. There are some green coffee bean extract supplements that have additional caffeine added to them, so they are more likely to cause an interaction. Specific interactions with chlorogenic acid are not as well known or documented at this time.
- Coffee reduces alendronate bioavailability by 60% in humans.
- Separate coffee ingestion, including green coffee, and alendronate administration by two hours.
- Clinical studies have shown that green coffee extract decreases blood pressure. When used with antihypertensive drugs, green coffee might have additive blood pressure-lowering effects; use with caution.
- The caffeine in green coffee is a competitive inhibitor of adenosine at the cellular level. However, caffeine doesn’t seem to affect supplemental adenosine because high interstitial levels of adenosine overcome the antagonistic effects of caffeine.
- It is recommended that methylxanthines and methylxanthine-containing products be stopped 24 hours prior to pharmacological stress tests. However, methylxanthines appear more likely to interfere with dipyridamole (Persantine) than adenosine-induced stress testing.
- Theoretically, use of green coffee and diabetes drugs at the same time might interfere with blood glucose control due to the caffeine in coffee.
- In clinical research, green coffee extract (Svetol, Naturex, South Hackensack, NJ), either alone or in combination with caffeine (CoffeeSlender, Med-Eq Ltd, Tonsberg, Norway) resulted in modest reductions in blood glucose levels in healthy individuals. However, other reports claim that caffeine might increase or decrease blood sugar.
- Theoretically, concomitant use might increase serum caffeine concentrations and the risk of adverse effects, due to the caffeine contained in green coffee. Cimetidine decreases the rate of caffeine clearance by 30% in humans.
- Theoretically, co-administration might acutely exacerbate psychotic symptoms, due to the caffeine contained in green coffee. Caffeine can increase the effects and toxicity of clozapine. Caffeine doses of 400-1000 mg per day inhibit clozapine metabolism in humans.
- Clozapine is metabolized by cytochrome P450 1A2 (CYP1A2). Researchers speculate that caffeine might inhibit CYP1A2. But there is no reliable evidence that caffeine affects CYP1A2. There is also speculation that genetic factors might make some patients be more sensitive to the interaction between clozapine and caffeine.
- Theoretically, concomitant use might increase caffeine concentrations and the risk adverse effects, due to the caffeine contained in green coffee. Oral contraceptives decrease the rate of caffeine clearance by 40% to 65% in humans.
- The caffeine in green coffee inhibits dipyridamole-induced vasodilation (human research). It is recommended that methylxanthines and methylxanthine-containing products be stopped 24 hours prior to pharmacological stress tests. Methylxanthines appear more likely to interfere with dipyridamole (Persantine) than adenosine-induced stress testing.
- Green coffee contains caffeine. Concomitant use can increase caffeine serum concentrations, and the risk of adverse effects. Disulfiram decreases the rate of caffeine clearance in humans.
- Use of ephedrine with green coffee can increase the risk of stimulatory adverse effects of caffeine. There is evidence that using ephedrine with caffeine might increase the risk of serious life-threatening or debilitating adverse effects such as hypertension, myocardial infarction, stroke, seizures, and death (anecdotal evidence).
- Avoid taking green coffee with ephedrine and other stimulants.
- Theoretically, concomitant use might increase serum caffeine concentrations and the risk of adverse effects, due to the caffeine contained in green coffee. Estrogen inhibits caffeine metabolism in humans.
- Concomitant use might increase the effects of caffeine. Fluconazole decreases caffeine clearance by approximately 25% in humans.
- Green coffee contains caffeine. Concomitant use of fluvoxamine can increase caffeine serum concentrations, and the risk of caffeine adverse effects. Fluvoxamine reduces caffeine metabolism in humans.
- Theoretically, abrupt green coffee withdrawal might increase serum lithium levels, due to the caffeine contained in green coffee. There are two case reports of lithium tremor that worsened upon abrupt coffee withdrawal.
- Concomitant use might increase the effects and adverse effects of caffeine in green coffee. Mexiletine can decrease caffeine elimination by 50%.
- The caffeine in coffee might negate the hypnotic effects of pentobarbital.
- Concomitant use of phenylpropanolamine and green coffee might cause an additive increase in blood pressure due to the caffeine in green coffee. Phenylpropanolamine also seems to increase caffeine serum levels.
- Theoretically, concomitant use might increase serum caffeine concentrations and the risk of adverse effects, due to the caffeine contained in green coffee. Quinolones decrease caffeine clearance.
- Quinolones (also referred to as fluoroquinolones) include ciprofloxacin (Cipro), enoxacin (Penetrex), gatifloxacin (Tequin), levofloxacin (Levaquin), lomefloxacin (Maxaquin), moxifloxacin (Avelox), norfloxacin (Noroxin), ofloxacin (Floxin), sparfloxacin (Zagam), and trovafloxacin (Trovan).
- Theoretically, concomitant use might increase serum caffeine concentrations and the risk of adverse effects, due to the caffeine contained in green coffee. Terbinafine decreases the rate of caffeine clearance in humans.
- Theoretically, concomitant use might increase serum theophylline concentrations and the risk of adverse effects, due to the caffeine contained in green coffee. Large amounts of caffeine might inhibit theophylline metabolism.
Should you be supplementing with Green Coffee Bean?
Green coffee bean and green coffee bean extract show promise in helping reduce weight gain and possibly promoting weight loss. If you have untreated hypertension, this supplement may help reduce blood pressure.
Weighing In: Green Coffee Bean Extract – A Potential Safe and Effective Weight Loss Supplement?
By Melissa Quick, DO, and David Kiefer, MD, Editor
Dr Quick is a third-year resident in New York at the Beth Israel Residency in Urban Family Medicine.
Dr. Quick reports no financial relationships relevant to this field of study.
Financial Disclosure: Integrative Medicine Alert’s executive editor David Kiefer, MD, peer reviewer J. Adam Rindfleisch, MD, MPhil, AHC Media executive editor Leslie Coplin, and managing editor Neill Kimball report no financial relationships relevant to this field of study.
- Preliminary research from small, randomized, clinical trials indicates that green coffee bean extract promotes weight loss and decreases body mass index compared to control groups.
- A major active component in green coffee bean extract is chlorogenic acid, a phenol that has been shown to modulate glucose metabolism, inhibit fat accumulation, and reduce weight in animal models and in humans.
- Early clinical research shows no significant adverse effects from green coffee bean extract.
Worldwide, obesity has nearly doubled in the past 30 years. In 2008, more than 1.4 billion adults were overweight (body mass index 25-29.9 kg/m2 ), and of these, 200 million men and 300 million women were obese (BMI > 30 kg/m2 ).1 In the United States, more than one-third of the population was considered obese in 2010.2 A multitude of factors contribute to this epidemic including genetics, inactivity, education, financial limitations, and the globalization of the food industry creating more prepackaged, low-priced, high-energy foods.3
In conjunction with the increasing belt size of the world comes serious health risks that are directly proportional to weight gain. We know that the risk for all-cause mortality increases across the spectrum from overweight to obese.4 Excess weight can also lead to metabolic syndrome — a combination of central obesity, impaired glucose tolerance, hypertension, and dyslipidemia5 — which can lead to an increased risk of developing type 2 diabetes and cardiovascular disease.6 The predominant underlying risk factor for metabolic syndrome is obesity.7 Obesity has also independently been linked to the development of type 2 diabetes, stroke, and some types of cancer (endometrial, breast, and colon).8 As a modifiable risk factor, reducing one’s weight can significantly improve all aspects of metabolic syndrome.9
Research suggests that small reductions in visceral adipose tissue can improve cholesterol, blood pressure, and insulin sensitivity.10 As such, one approach to battling the bulge is to combine weight-loss dietary strategies and exercise with bioactive compounds that may change fat distribution. Enter the increasingly popular “slimming” strategy of dietary supplements, a topic that has been covered in past issues of Integrative Medicine Alert.11-13
Green Coffee Bean Extract
Green coffee bean extract (GCBE) is one dietary supplement that is gaining popularity, specifically for its potential weight-reduction capabilities. Recent endorsement from media star Dr. Oz has helped propel this supplement into the public eye. Dr. Oz recently referred to GCBE as “the green coffee bean that burns fat fast” and has claimed that no exercise or diet is necessary to lose weight.14 Media aside, the question remains: Is GCBE an effective and safe weight loss supplement?
Green (or raw) coffee beans are coffee beans that have not been roasted. Traditionally, GCBE is removed from a green coffee bean, commonly Coffea canephora robusta, using alcohol as a solvent.15 Two major active components in coffee beans are caffeine and chlorogenic acid (CGA). Both have been scrutinized in the media and the scientific community for their potential weight loss capabilities. Although this article primarily will focus on the effects of CGA, as this is the primary component in most formulations of GCBE, it is worth briefly mentioning caffeine’s role in weight loss, as some GCBE formulations contain small amounts of caffeine as well.
Caffeine (1,3,7-trimethylxanthine) is a well-known stimulant that has been linked to weight loss and the reduction of risk of the metabolic syndrome.16 One of the proposed mechanisms of caffeine’s effect on weight loss includes increasing thermogenesis, which consequently enhances lipolysis and lipid metabolism.16 Caffeine has been shown to increase energy expenditure in humans, thereby assisting with weight loss.
The main constituent of GCBE that is responsible for its pharmacological effects is the CGA found in green coffee beans. Other natural sources of CGA include plums,17 apples, and berries.18 CGA — actually a group of acids that are biologically active phenols, the most common of which is called 5-caffeoylquinic acid19 — is found in higher quantities in green coffee beans compared to roasted coffee beans, secondary to the inherent thermal instability of CGA.20 With regard to weight loss, CGA has been shown to modulate glucose metabolism, inhibit fat accumulation, reduce weight in animal models and in humans, and to possibly alter adipokine levels and body fat distribution.21 Other proposed effects include the reduction of postprandial glucose concentrations and reduction of intestinal glucose absorption.22 Additionally, CGA has been reported to selectively inhibit hepatic glucose-6-phosphatase, a rate-limiting step in gluconeogenesis.23
In Vitro and Animal Trials
Several in vitro and animal trials have been performed over the past decade investigating the relationship between GCBE and metabolism. There is evidence that diets high in polyphenols, including CGA, may help to prevent diseases associated with oxidative stress, such as coronary heart disease and some forms of cancer.22 In vitro, CGA exhibits antioxidant properties by scavenging free radicals.24
In 2006, a study showed that a form of GCBE containing CGA combined with caffeine fed to mice for 14 days had an inhibitory effect on fat accumulation and weight gain. Interestingly, however, pure caffeine and CGA independently did not significantly suppress weight gain or visceral fat accumulation in this study. They found that caffeine likely suppresses fat absorption while CGA enhances fat metabolism in the liver and found that the two components functioned synergistically.21
Another animal study performed in 2010 explored the efficacy of CGA vs caffeic acid (another type of phenol and unrelated to caffeine) on induced-obese mice fed a high-fat diet. Both CGA and caffeic acid lowered body weight, visceral fat mass, triglycerides, and cholesterol levels compared to the control group (P < 0.05). In addition, the results suggest that CGA was more effective at body weight reduction and lipid metabolism regulation than caffeic acid (P < 0.05).25
Echoing the previous studies demonstrat-
ing positive effects of CGA, a 2012 study found that coffee extract given to rats with metabolic syndrome improved impairment in glucose tolerance, hypertension, cardiovascular remodeling, and nonalcoholic fatty liver disease without changing abdominal obesity and dyslipidemia.26
At odds with other animal trials is a study published earlier this year that depicts conflicting evidence regarding the benefits of CGA supplementation. This study involved diet-induced obese male mice divided into three dietary groups: normal diet, high-fat diet, and high-fat diet + CGA. The group supplemented with CGA had a higher hepatic lipid content and more hepatic steatosis compared to the high-fat group not given supplementation.27 This suggests CGA is not protective against metabolic syndrome, although no mention was made explicitly pertaining to weight changes associated with the supplement.
Several human clinical trials demonstrate GCBE might offer a modest weight reduction benefit. A three-way, randomized, single-blind, crossover study published in 2003 examined whether the consumption of dietary amounts of CGA in coffee had any effect on plasma concentrations of glucose, insulin, glucose-dependent insulinotropic polypeptide (GIP), and glucagon-like peptide 1 (GLP-1) in humans. Nine healthy fasting volunteers consumed 25 g of glucose dissolved in either caffeinated or decaffeinated coffee. The results showed that GIP secretion decreased after both caffeinated and non-caffeinated coffee consumption, but not after consumption of the control beverage (P < 0.005). Additionally, postprandial GLP-1 secretion increased 0-120 minutes (P < 0.01) after decaffeinated coffee consumption compared with the control. These findings confirm the potent biological action of caffeine and suggest that CGA might have an antagonistic effect on glucose transport.19
In 2010, a small, three-way, double-blind, randomized, crossover study was performed with two main objectives: to investigate the effect of coffee supplemented with CGA compared with normal coffee and to evaluate regular supplementation of CGA in overweight and obese subjects.15 CGA was present as 200 mg per 2200 mg of Coffee Slender® , obtained from the beans of Coffea canephora robusta Pierre (Svetol® ; Berkem SA, Gardonne, France).
The first objective was performed with 12 healthy volunteers (BMI < 25 kg/m2 ) who drank either glucose solution (the control), the CGA supplemented coffee (Coffee Slender), Nescafé instant coffee (caffeinated), or Nescafé decaffeinated coffee. Mean glucose plasma concentrations were taken in various minute intervals after the ingestion of the liquid (T = 0, 15, 30, 45, 60, 120). The CGA supplemented coffee group demonstrated a significant reduction in mean plasma glucose concentrations compared to the control group (mean plasma glucose area under the curve : glucose control 778 ± 10.2; Coffee Slender 724 ± 8.2, P < 0.05).
The second aspect of this study involved 30 volunteers (BMI 27.5-32 kg/m2 ) divided into two groups: 15 received the CGA supplemented coffee and 15 received normal instant coffee. Each group drank 5 cups of black coffee a day (11 g/day of coffee) for 12 weeks. Weight was monitored (in kg) at the start, week 4, and week 12. There were statistically significant weight reductions for Coffee Slender® vs normal instant coffee drinkers (5.4 ± 0.6 and 1.7 ± 0.9 kg, respectively, P < 0.05). (See Table 1.)
The first systematic review and meta-analysis on this subject was performed in 2011, examining only randomized, double-blind, placebo-controlled studies investigating the use of GCBE and the effects on weight loss.22 Out of five eligible trials, three were included in the analysis. The meta-analysis reveals a statistically significant difference in body weight between GCBE and placebo (mean differences , -2.47 kg; 95% confidence interval , -4.23 to -0.72) over one 4-week period and two 12-week periods. Although the three studies in the meta-analysis (including the 2010 study reviewed above) revealed a significant difference in change in body weight between GCBE and placebo, the authors of this study caution that this significance is moderate.
The authors also acknowledge that there is a large amount of heterogeneity between the three studies. These studies varied in what information was clearly reported: Specifically, all three of the studies fail to mention technique of randomization; whether allocation was concealed; and if blinding was utilized for the outcome assessor, care provider, or patient. Additionally, the studies differ in number of subjects analyzed and length of time of the study.
The most recent clinical trial on GCBE took place in 2012 and was a randomized, double-blind, placebo-controlled, linear dose, crossover, 22-week study that evaluated the efficacy and safety of GCBE in 16 overweight adults.28 Subjects were randomly assigned a low-dose green coffee extract sequence taken for 6 weeks twice daily, a high-dose green coffee extract sequence taken three times daily, and a placebo sequence taken three times daily.
According to the Natural Medicines Comprehensive Database, at the time of print, there are 187 products containing GCBE on the market in the United States. GCBE is generally in the form of a pill or as a CGA-enriched green coffee product.
Green coffee beans contain 5-12 g of CGA per 100 g of beans.20 Most formulations of GCBE for weight loss contain 80-200 mg of GCBE daily (generally dosed twice daily and contain approximately 50% CGA). The most recent 2012 clinical study, mentioned above, utilized 700 mg and 1050 mg of GCBE mg in the proprietary form (GCATM) and no adverse effects were reported. In comparison, a regular coffee drinker would ingest approximately 0.5-1 g of CGA daily, presumably less than in GCBE secondary to the thermal degradation of CGA mentioned previously.19,29
In clinical trials, oral consumption of green coffee appears well tolerated. However, it is important to recall that though the studies do not report any adverse events during the research period; this does not correlate with the assumption that GCE intake is a “risk-free” supplement.
The risk of drug interactions when using GCBE are largely theoretical in nature and earn a “D” level of evidence rating, based only on the presumptive pharmacological interactions between molecular compounds, rather than clinical trials or even expert opinion. Many well-known pharmaceutical groups have a “moderate” interaction rating in the Natural Medicines Database, which indicates a patient should “be cautious when combining GCBE with many common medications” such as anticoagulant/antiplatelet drugs, monoamine oxidase inhibitors, lithium, antihypertensive medications, antihyperglycemic medications, and many more.30
In general, caffeine has no significant health risks to consumers, and moderate (< 400 mg/d) caffeine consumption is safe.31 However, high intake of caffeine has been shown to cause headaches, diuresis, gastric distress, nervousness, vomiting, insomnia, anxiety, agitation, ringing in the ears, and arrhythmias.32
Limitations and Cost
There are several limitations to the human studies mentioned above. All of the randomized, controlled studies found on this topic have very small sample sizes. Additionally, the statistical significance determined in the meta-analysis is actually equivocal, because the confidence interval crosses one, thereby negating the significance of these studies as one entity. Also, there is no mention of the mechanism of blinding in these studies, therefore raising the concern of bias affecting the results.
We must recall that “dietary supplements” are a relatively new category and are regulated by the FDA as a “food” rather than a drug. Under the Dietary Supplement Health and Education Act, a manufacturer of a supplement takes responsibility for determining that the dietary supplements it manufactures or distributes is safe; thus, the FDA does not need to approve a supplement before it is placed on the market. Interestingly, it is illegal for a manufacturer to market a dietary supplement product as a treatment or cure for a disease, so one will never see a label for GCBE to cure overweight or obesity.33
Since the dietary supplement industry is not regulated in the same way as the pharmaceutical industry, products often contain multiple constituents that are not clearly advertised. An unknowing consumer could easily purchase a form of GCBE unaware that caffeine or other herbal components are present.
Furthermore, only two formulations of GCBE on the market (GCATM and Svetol® ) were used in all known published clinical trials.30 Thus, it is recommended to only use GCBE that contain these formulations, as human studies have not been performed with other formulations and safety cannot be determined.
There are additional studied benefits from CGA worth mentioning, specifically the purported effects CGA has on lowering blood pressure. Regular coffee consumption has been linked to increased blood pressure, likely secondary to the effects of caffeine. However, research with CGA has shown spontaneously hypertensive rats given GCBE to have a reduction blood pressure after a single dose.34 A human study performed in 2005 suggested that daily use of CGA has a blood pressure-lowering effect in patients with mild hypertension, particularly with higher doses of GCBE leading to greater systolic blood pressure reductions.35
A final consideration is the price of this supplement. A recent Amazon.com search finds multiple brands of GCBE costing between $12 (60 capsules) and $30 (90 capsules).
Certainly the potential benefit of a dietary supplement to reduce weight and thereby reduce the health risks associated with overweight and obesity is tremendous. CGA, the main active pharmacological ingredient in most formulations of GCBE, has been shown to modulate glucose metabolism, inhibit fat accumulation, reduce weight in animal models and in humans, and to possibly alter adipokine levels and body fat distribution. The trend of the reviewed animal studies demonstrates that CGA tends to be most effective lowering body weight, decreasing fat accumulation when working synergistically with either caffeine or caffeic acid. Initial evidence from small, randomized, clinical trials indicates that GCBE promotes weight loss compared to control groups in trial times ranging from 4 to 22 weeks. Additionally, it appears that overall, GCBE is a relatively safe supplement with no adverse effects reported in past clinical studies.
Should we recommend GCBE to our overweight and obese patients? Traditional weight loss methods (dieting, self-monitoring, stimulus control, nutritional counseling, physical activity, etc.) can be related to patient motivation and even then, may
not be entirely effective. Is GCBE an “easy way” to lose weight? That is unlikely, and, in the current
state of the medical literature about GCBE, it is difficult to say for sure.
One must always weigh, no pun intended, the risks and benefits of any intervention. For example, bariatric surgery is often considered in adults (BMI ≥ 40 kg/m2 or BMI ≥ 35 kg/m2 with significant obesity-related comorbidities) who have not achieved weight loss with dietary or other interventions.36 Though preliminary research shows much promise with this intervention, one must recall the great risks inherent to a surgical procedure, including the risk of death. Comparatively, the risks associated with a dietary supplement such as GCBE are likely significantly lower than an invasive surgery.
As health care providers, it is our role to educate our patients about the health risks of overweight and obesity. We must be their advocate and encourage safe and effective mechanisms to reduce weight. It is important to emphasize to patients that even modest weight reduction (5-10%) can have significant health benefits.36
Thus, in summary, based on the current evidence surrounding GCBE and weight loss, it seems that overall this is a safe and possibly effective supplement. While an effective dosage for GCBE for use as a weight loss supplement is not established, study doses with no reported adverse effects range from 200 mg twice daily to 700 mg once daily. Exceeding this amount has unknown effects at this time. Ultimately, it is prudent to proceed cautiously when discussing GCBE as a weight loss option with patients, and to not detract from other efforts to implement a healthy diet and lifestyle. Further research with increased sample sizes and longer study durations is paramount to advancing our knowledge about the efficacy and safety of this dietary supplement.
- World Health Organization Fact Sheet: Obesity and Overweight. Available at: www.who.int/mediacentre/factsheets/fs311/en/index.html. Accessed July 18, 2013.
- Ogden CL, et al. Prevalence of Obesity in the United States 2009-2010. NCHS data brief, no 82. Hyattsville, MD: National Center for Health Statistics. 2012.
- Cascio G, et al. Dietary fatty acids in metabolic syndrome, diabetes, and cardiovascular diseases. Curr Diabetes Rev 2012;8:2-17.
- St-Onge MMP, et al. Overweight and obesity status are linked to lower life expectancy. Nutr Rev 2002;61:313-316.
- Deen D. Metabolic syndrome: Time for action. Am Fam Physician 2004;69:2875-2882.
- Ford ES. Risks for all-cause mortality, cardiovascular disease, and diabetes associated with the metabolic syndrome: A summary of the evidence. Diabetes Care 2005;8:1769-1778.
- Grundy SM, et al. AHA/NHLBI scientific statement: Diagnosis and management of the metabolic syndrome. Circulation 2005;112:2735-2752.
- Centers for Disease Control and Prevention. Obesity and overweight for professionals: Adult obesity facts. Available at: www.cdc.gob/ovesity/data/adult.html. Accessed Jul 28, 2013.
- Armstrong C. AHA and NHLBI review diagnosis and management of the metabolic syndrome. Am Fam Physician 2006;74:1039-1047.
- Depres JP, et al. Fat districution and metabolism. Diabetes Metab 2001;27:209-214.
- Kiefer D. The HCG diet: Does it work? Altern Med Alert 2012;15:13-17.
- Kiefer D. A review of the clinical effects of green tea: Up-to-date reasons to imbibe. Altern Med Alert 2011;14:133-137.
- O’Mathúna DP. Herbal remedies for weight loss. Altern Med Alert 2011;14:37-41.
- Duncan L. The green coffee bean that burns fat fast. The Dr. Oz Show, April 25, 2012. Available at: http://www.doctoroz.com/blog/lindsey-duncan-nd-cn/green-coffee-bean-burns-fat-fast.
- Thom E. The effect of chlorogenic acid enriched coffee on glucose absorption in healthy volunteers and its effect on body mass when used long-term in overweight and obese people. J Int Med Res 2007;35:900-908.
- Greenberg JA, et al. Coffee, diabetes, and weight control. Am J Clin Nutr 2006 vol. 84 no. 4 682-693
- Mubarak A, et al. Polyphenol composition of plum selections in relation to total antioxidant capacity. J Agric Food Chem 2012;60:10256-10262.
- Clifford MN. Chlorogenic acids and other cinnamates: Nature, occurrence, dietary burden, absorption and metabolism. J Sci Food Agric 2000;80:1033-1043.
- Johnston KL, et al. Coffee acutely modifies gastrointestinal hormone secretion and glucose tolerance in humans: Glycemic effects of chlorogenic acid and caffeine. Am J Clin Nutr 2003;78:728-733.
- Farah DA. Phenolic compounds in coffee. Braz J Plant Physiol 2006;18:23-36.
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- Onakpoya I, et al. The use of green coffee extract as a weight loss supplement: A systematic review and meta-analysis of randomised clinical trials. Gastroenterol Res Pract 2011; 2011: 382852. Epub 2010 Aug 31.
- Arion WJ, et al. Chlorogenic acid and hydroxynitrobenzaldehyde: New inhibitors of hepatic glucose 6-phosphatase. Arch Biochem Biophys 1997;339:315-322.
- Blum J, et al. Effect of a green decaffeinated coffee extract on glycemia: A pilot prospective clinical study. NutraFoods Research 2007;6:13-17.
- Cho AS, et al. Chlorogenic acid exhibits anti-obesity property and improves lipid metabolism in high-fat diet-induced-obese mice. Food Chem Toxicol 2010;48:937-943.
- Panchal SK, et al. Coffee extract attenuates changes in cardiovascular and hepatic structure and function without decreasing obesity in high-carbohydrate, high-fat diet-fed male rats. J Nutr 2012;142:690-697.
- Mubrak A, et al. Supplementation of a high-fat diet with chlorogenic acid is associated with insulin resistance and hepatic lipid accumulation in mice. J Agric Food Chem 2013;61:4371-4378.
- Vinson JA, et al. Randomized, double-blind, placebo-controlled, linear dose, crossover study to evaluate the efficacy and safety of a green coffee bean extract in overweight subjects. Diabetes Metab Syndr Obes 2012;5:21-27.
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Green Coffee Bean Extract
Green coffee bean extract has been shown to improve general well being, regulate blood sugar levels, burn fat, and lower blood pressure. Green coffee bean extract is made from unroasted beans, preserving many natural therapeutic compounds such as chlorogenic acid.
Studies also have shown that green coffee bean extract is an effective weight loss agent; helping the body shed extra fat and increasing lean muscle mass. It also regulates the release of sugar into the bloodstream, which helps maintain healthy energy levels and prevents blood sugar spikes. Green coffee bean extract may even cut lipid levels in the blood, lowering high cholesterol and protecting the heart.
Furthermore, research has shown that green coffee bean extract can reduce blood pressure and improve vascular function. It can also boost energy levels, focus, and endurance while reducing the risk of developing depression. It has lower levels of caffeine than most regular coffee, reducing the risk of side effects such as anxiety and increased blood pressure.
Green coffee bean extract is very safe, with few notable side effects associated with routine use. Some users report that it can cause mild stomach discomfort, diarrhea, constipation, and headaches. It does contain caffeine, so it may cause anxiety and increased heart rate for those who are sensitive to caffeine.
Best Green Coffee Bean Extract
1VitaBalance Green Coffee Plus
Green Coffee Plus from VitaBalance is one of the leading manufacturers of green coffee extracts formulated to support weight loss, energy, and antioxidant levels for your lifestyle. In this formula, the green coffee bean extract is highly potent containing 50% green coffee antioxidant. The formula contains simple green coffee antioxidant and green coffee bean extract with no additives or unnecessary ingredients added to the mixture
VitaBalance manufactures Green Coffee Plus in a FDA-registered USA facility. Green Coffee Plus by VitaBalance contains no GMOs and is completely vegan-friendly.
2NatureWise Green Coffee Bean Extract 800
NatureWise is known for providing high-quality supplements full of natural ingredients.This green bean coffee extract supplement provides 800 mg of standardized 50% green coffee antioxidant per serving, all in a veggie capsule.
NatureWise’s formula is unique in that it provides a green coffee bean supplement that is decaffeinated. This is done to avoid causing jittery side effects or extra stimulation. You will find a simple ingredient list with no additives or chemicals, making this suitable for vegan, paleo, gluten-free, and other types of healthy lifestyles.
3Sports Research SVETOL Green Coffee Bean Extract
Sports Research SVETOL Green Coffee Bean Extract is a pricier option but it provides a high-quality supplement that speaks for itself. Sports Research’s formula contains 45% standardized green coffee antioxidant in a 4oomg per serving format. Sports Research SVETOL Green Coffee Bean Extract is enhanced with organic coconut oil to provide a more complete formula.
You will find that this compound contains only slightly over 1% caffeine to avoid overstimulation. SVETOL does have some additional ingredients, particularly for the capsules makeup, but nothing that causes concern for chemicals or unhealthy additives.
Sports Research SVETOL Green Coffee Bean Extract is manufactured in the USA in a GMP-approved facility and has undergone third-party lab testing as well.
4aSquared Nutrition Pure Green Coffee Bean Extract
The pure green coffee bean extract from aSquared Nutrition is a great value for the money. Each capsule contains 800 mg of green coffee bean extract and the bottle contains 180 capsules. This is a maximum strength dose when you take 2 capsules per day.
In this formula, green coffee antioxidant is a standardized 50% paired with green coffee bean extract for a potent solution. This formula was designed to promote fat burning, boost metabolism, and suppress your appetite.
This product is made in the USA in a GMP & FDA-compliant facility. This is a 100% natural product with veggie capsules that contains no additives or fillers.
5Nature’s Craft Natural Raw Green Coffee Bean Extract
Nature’s Craft green coffee bean extract is an 800 mg dose that contains 50% standardized green coffee extract combined with the green coffee bean extract, making for a potent formula that works quickly and effectively to get you the results you are after.
This blend is 100% natural with veggie capsules so there are no additives, fillers, or chemicals in the ingredient makeup to be concerned about. You will find that is formula is designed to cleanse and detox your gut, stabilize your glucose levels, and boost your metabolism to help achieve weight loss.
This product is manufactured in a GMP-approved facility located in the USA.
6Bio Sense Pure Green Coffee Bean Extract
Bio Sense delivers natural solutions with their green coffee bean extract formulated to boost metabolism, increase energy, and improve your weight loss results. This formula has green coffee bean extract with standardized 50% green coffee antioxidant.
The capsule is a veggie capsule with no concerning additives or filler added to the mix. Bio Sense Green Coffee Bean Extract is an all-natural product that is highly effective and potent at 800 mg per capsule. It’s also manufactured in the USA in a GMP-certified facility and is backed by a satisfaction guarantee.
7NutriONN Pure Green Coffee Bean Extract
NutriONN is a lesser-known company with a product that deserves to be found on the ranks. This supplement is made with pure green coffee bean extract with 50% standardized green coffee antioxidant and provides a high dose of 800mg per capsule.
NutriONN Pure Green Coffee Bean Extract is designed with minimal caffeine to reduce excessive stimulation. It is made with a veggie capsule and there are absolutely no fillers, binders, or artificial ingredients. It’s also made in a GMP-registered facility located in the USA and is backed by a 100% money-back guarantee.
8Supreme Potential Pure Green Coffee Bean Extract
Supreme Potential offers a natural fat loss supplement with their green coffee bean extract formula that provides an all natural, non-GMO product to suppress appetite while providing improved memory, focus, and fatigue levels.
This formula is made up of pure green coffee bean extract with 50% standardized green coffee antioxidant. There are zero fillers, binders, chemicals, or artificial ingredients to be concerned about. Supreme Potential Green Coffee Bean Extract is made in the USA in an FDA and GMP-registered facility.
9Evolved Advantage Green Coffee Bean Extract
Evolved Advantage delivers a high-quality green coffee bean extract supplement that provides a standard 800mg per serving dosage. This formula is all natural with no fillers, binders, or additives in the veggie capsule. Evolved Advantage is made with green coffee bean extract and 50% standardized green coffee antioxidant levels to provide a potent, high-quality supplement.
It’s also manufactured in the USA – but it is unclear whether this is done in a GMP-approved facility.
10Natrogix Pure Natural Green Coffee Bean Extract
Natrogix offers 800 mg per capsule, 50% standardized green coffee bean extract that is pure and 100% natural.
This product is made in a GMP-certified facility that is located in the USA and contains only the best ingredients, with no fillers or additives in a veggie capsule.
How We Rank
The first thing we looked at, when creating our rankings, was the rate of standardized green coffee antioxidant in each supplement. This is also referred to as the GCA or Chlorogenic acids on some labels. When it came to this part of the compound, we typically looked for something that was within 5% of the 50% mark. Chlorogenic acid is the active ingredient in green coffee bean extract, and is what provides all the benefits. Products like aSquared Nutrition and Nature’s Craft were ranked high because they provided very high rates (50%) of standardized green coffee antioxidants.
Only one option that was not exactly 50%, which was Sports Research Green Coffee Bean extract – they had 45%. We felt this was within our range and we stuck to this range to ensure that we presented you with the best options available.
Next, we carefully reviewed the ingredient list for anything unnecessary. While a “proprietary blend” may boast to be pure and effective, we really have no idea what is truly in that blend and it often contains additives that are simply unnecessary. Any company using a proprietary formula like the popular Double Dragon brand was axed from our list. We rewarded companies who used powerful supporting agents like Sports Research, who used coconut oil to further enhance the antioxidant power of their supplement.
Third, we looked for products that made pure green coffee bean extract as the primary ingredient, like our number 1 pick VitaBalance. We allowed for some minor capsule ingredients but strayed from additives or fillers. Nature’s Bounty is a popular health brand, but their formula hosted multiple additives that we felt weren’t the best option and therefore they didn’t make the list.
Lastly, we looked for products that provided third party testing. Companies like NatureWise, that provided third-party lab testing or quality assurance on their products, showed us that they were serious about delivering quality.
After all this, we determined the top 10 best green coffee bean extract supplements on the market.
1Green coffee bean extract can help speed up weight loss. Green coffee bean extract contains chlorogenic acid, which helps the body burn sugar and break down fat. This may make it an effective supplement for weight loss, cutting excess fat, and building lean muscle mass. One 2016 study found that green coffee bean extract led to significant weight loss in obese mice, and also helped regulate hormones that are responsible for fat storage. These mice also had leaner body mass, with less fat and more muscle (1).
Although this research is promising, more studies are needed to see if green coffee bean extract also leads to weight loss in humans. It’s also not known if green coffee bean extract is more effective than regular coffee for increasing the rate of weight loss, or if they are more effective when taken together.
2Green coffee bean extract can help lower blood pressure. High blood pressure is a condition that affects millions of people, increasing the risk of heart disease and strokes. A study found that patients using green coffee bean extract for low blood sugar had significantly lower blood pressure after taking 800 mg of extract per day. Other 2006 studies have seen similar results, although many used lower doses of around 100 mg per day. These studies found that green coffee bean extract was effective in reducing blood pressure when taken daily for 4 to 12 weeks (2).
There is not enough research to support the use of green coffee bean extract as a primary treatment for high blood pressure. However, it may be effective when used in combination with first-line therapies such as calcium channel blockers. It’s also safe, with few notable side effects.
3Green coffee bean extract improves focus. Green coffee bean extract has caffeine, which is one of the most widely used and effective drugs for increasing mental energy and improving focus.
People consuming caffeine show significant improvements in motivation, focus, attention, and reaction time. Since green coffee bean extract has less caffeine than most standard coffees, it’s less likely to cause side effects such as anxiety, increased blood pressure, and sweating.
4Green coffee bean extract may lower cholesterol. High cholesterol can cause plaques to form in the arteries, increasing the risk of heart disease and stroke. Studies have shown that chlorogenic acid, a compound found in green coffee bean extract, may help the body regulate triglycerides and cholesterol. One study found that rats given green coffee bean extract had significantly lower levels of fatty deposits on their liver, as well as lower blood lipid levels (3).
Most of this research has been done with rats, so more studies are needed to understand how green coffee bean extract affects human cholesterol levels.
Green coffee bean extract should not be used as a first-line treatment for high cholesterol. However, it is safe when used with standard therapies such as statins. If you plan on using green coffee bean extract to treat high cholesterol, you should speak to your doctor.
5Green coffee bean extract boosts energy levels. Green coffee bean extract contains noticeable levels of caffeine, which can give you a clean boost of energy and improve mental function. It can also boost mood, reducing the risk of developing depression (4).
Caffeine can also have a positive effect on athletic performance, speeding up reflexes, and improving endurance. It also activates the motor cortex, leading to increases muscle contraction and greater strength.
6Green coffee bean extract has anti-aging benefits. Green coffee bean extract is packed with a variety of antioxidants, molecules that help protect cells by fighting free radicals.
Free radicals damage DNA in cells, leading to cell death and impaired organ function. Antioxidants protect cells, extending their lifespan, and reducing signs of aging (5).
Studies have shown that green coffee bean extract has high levels of chlorogenic acid, a potent antioxidant. It can protect cells and potentially slow aging. Chlorogenic acid is not found in regular coffee, so you’ll only get chlorogenic acid if you supplement with green coffee bean extract.
7Green coffee bean extract can help to regulate blood sugar levels. Chronic high blood sugar can be dangerous, leading to weight gain and possibly causing type 2 diabetes. It can impact organ function, as well as cause nerve damage and impaired vision.
A study found that green coffee bean extract use led to a significant reduction in blood sugar levels. It reduced insulin dependence, helping the body more effectively break down sugar in the blood, reducing the risk of developing type 2 diabetes (6).
More research is needed to fully understand the role that green coffee bean extract plays in blood sugar regulation. It’s still not known if green coffee bean extract is beneficial for people who already have type 2 diabetes, or if it only helps prevent the condition.
8Green coffee bean extract improves vascular function. Green bean coffee extract has been shown to improve vascular function, helping regulate circulation. Patients with impaired vascular function were given 140 mg of chlorogenic acid, the main therapeutic compound in green coffee bean extract, for 4 weeks. These patients showed significant improvements in vasoreactivity, improving blood flow, and reducing the risk of cardiac events (7).
9Green coffee bean extract can reduce systemic inflammation. The antioxidant activity of the chlorogenic acid found in green coffee bean abstract may also reduce inflammation.
Most studies on the anti-inflammatory properties of green coffee bean extract were conducted with mice, so more research is needed to understand how it affects inflammation in the human body. However, it may be a useful therapy for a number of different inflammatory diseases, such as arthritis.
10Green coffee bean extract can help reduce overall caffeine consumption. Caffeine can be beneficial, helping improve focus and boost mood. However, excess caffeine can cause unwanted side effects, such as increased heart rate, sweating, and anxiety. Caffeine tolerance can also build up quickly, meaning that more caffeine is needed to get the same effect.
Green coffee bean extract contains lower levels of caffeine than roasted beans. This makes green coffee bean extract a great alternative for people who want the health benefits of coffee but without as much caffeine. It also reduces the risk of developing anxiety or heart palpitations.
11Green coffee bean extract can help prevent depression. Depression is a common mood disorder that causes fatigue, sadness, irritability, and difficulty concentrating. Many common treatments for depression have major side effects and are not always effective. Green coffee bean extract contains caffeine, a stimulant that has been shown to improve mood, boost focus, and increase energy. Studies have shown that caffeine intake is associated with significantly lower levels of depression (8).
Although caffeine can be effective for treating some cases of depression, it can make others worse. If you are using caffeine to boost energy and mood, try to limit intake to less than 200 mg a day. Don’t use caffeine in the afternoon or evening, as it can affect sleep quality, making many symptoms of depression worse.
12Green coffee bean extract can increase your metabolism. Green coffee bean extract contains caffeine, which can speed up the metabolism, leading to increased energy production (9).
A faster metabolism also means that the body burns through fat stores more quickly. This makes green coffee bean extract effective for increasing weight loss, especially when combined with exercise.
13Green coffee bean extract helps regulate carb absorption in the gut. Large amounts of carbs entering the body can cause blood sugar levels to spike quickly. High blood sugar levels can then lead to energy crashes in the short term, as well as an increased risk for developing diabetes. The caffeine in green coffee bean extract helps regulate carb absorption in the digestive tract. It prevents excess carbs from entering the body, preventing blood sugar spikes (10).
1Some people may be allergic to green coffee bean extract, causing a reaction whenever they take the supplement. The allergic reaction can cause rashes, tightened throat, and a swollen tongue. If you are allergic to coffee, you should avoid green coffee bean extract (11).
2Green coffee bean extract may cause gastrointestinal side effects in some users. This can include stomach pain, constipation, diarrhea, and acid reflux. Many of these side effects can be avoided by taking the supplement with food.
3Green coffee bean extract can also interfere with sleep. To avoid any sleep disturbances, take it early in the day and cut back on coffee. It can also cause headaches, often due to dehydration. Drink plenty of water throughout the day, as the caffeine in green coffee bean extract causes the body to shed fluids.
4Women who are pregnant or breastfeeding should stay away from green coffee bean extract. Its safety for pregnant women and children has not been well studied.
5People with heart conditions should speak to their doctor before taking green coffee bean extract. The caffeine may cause changes in heart rate and blood pressure.
6Green coffee bean extract can interact with some medications, especially stimulant ones. If you are taking stimulants, speak to your doctor before taking green coffee bean extract, and consider drinking less coffee.
There is no standard dosage recommendation for green coffee bean extract, with doses varying significantly depending on the study. Concentrations are also different depending on the manufacturer, so you should adjust your dose accordingly.
The main therapeutic ingredient in green coffee bean extract is chlorogenic acid. Most studies using a dose of around 150-300 mg of chlorogenic acid. Depending on the concentration, this can require a dose of green coffee bean extract ranging from 300 to 2000 mg. The manufacturer’s recommended dose is often a good place to start when taking green coffee bean extract.
Green coffee bean extract should be taken in the morning, as the caffeine may interfere with sleep. Users report fewer side effects when they take the supplement with food.
Green coffee bean extract should not be brewed, as the high temperatures may affect its therapeutic properties. It can be mixed into drinks, or taken in capsules.
The caffeine in green coffee bean extract is a diuretic, meaning it causes the body to shed fluids. Drink plenty of water throughout the day to stay hydrated while taking green coffee bean extract.
Does green coffee bean extract have caffeine? Yes, green coffee bean extract does contain caffeine, with the amount varying depending on the manufacturer. If you are sensitive to caffeine, you should cut back on coffee while taking green coffee bean extract. You should also take green coffee bean extract in the morning to prevent any sleep disturbances.
Can you overdose on coffee bean extract? Coffee bean extract contains caffeine. If you take large doses of it, you could possibly overdose from the caffeine. This is rarely fatal, but it can cause a rapid and irregular heartbeat, anxiety, and panic attacks. Avoid consuming large amounts of coffee or other caffeinated beverages while taking green coffee bean extract.
Can green coffee bean extract be taken alongside coffee? Yes, green coffee bean extract is safe when taken with coffee. There are studies that show that some effects of green coffee bean extract may be amplified when black coffee is added. However, be careful when taking coffee with green coffee bean extract, as both contain high levels of caffeine. If you are sensitive to caffeine, the combination could cause anxiety and increased heart rate.
Is green coffee extract safe when taken long term? There is little research on the use of green coffee bean extract long term. However, it has few known side effects, meaning it should be safe when taken for prolonged periods. Coffee is also very safe when used for long periods, indicating that green coffee bean extract is probably safe as well.
What’s the difference between coffee and green coffee bean extract? Coffee beans are roasted before they are used to make coffee. This gives them more flavor, as well as increases caffeine content. However, it lowers the levels of chlorogenic acid, the main therapeutic compound in green coffee bean extract.
Green coffee bean extract preserves all of the natural therapeutic compounds found in coffee beans, making it more effective for weight loss, lowering blood pressure, and regulating blood sugar than regular coffee.
How much caffeine is in green coffee bean extract? Caffeine levels will vary depending on the coffee bean extract. The recommended dose from most manufacturers will contain around 50 to 100 mg of caffeine, which is about the amount that you would get in a cup of espresso.
What is chlorogenic acid? Chlorogenic acid is the main therapeutic ingredient found in green coffee bean extract. It’s what provides all the powerful benefits. It’s important to ensure the green coffee bean extract you choose contains high Chlorogenic acid.
Will you get the same benefits from drinking coffee? No, they won’t be the exact same benefits. Some of the benefits of green coffee extract will also be seen from drinking coffee, including increased energy. However, most of the benefits of green coffee bean extract come from chlorogenic acid, which is only found in low concentrations in coffee.
Can green coffee bean extract be mixed with food? Yes, however, it has a fairly bitter taste, so it may not go well with many foods. Green coffee bean extract should not be cooked, as it could reduce the efficacy of some of its therapeutic compounds.
Can green coffee bean extract be brewed? No, green coffee bean extract is not made to be brewed, as the high temperatures can affect some of its therapeutic compounds. It should be taken at around room temperature to get the maximum effect.
Is green coffee bean extract bad for your kidneys? There is not enough research for a definite conclusion into whether green coffee bean extract is safe for the kidneys. In persons with chronic kidney disease, it would not be recommended until more research is published. Please check with your physician before taking any herbal supplement or vitamin supplement.
Can I take green coffee bean extract on an empty stomach? You can, however, taking it on an empty stomach could stimulate the release of gastric acid, which can cause stomach upset or even ulcers.
Is green coffee bean extract good for thyroid patients? Green coffee bean extract is fine for thyroid patients as it does not affect thyroid function positively or negatively.
Can green coffee bean extract lower blood pressure? Yes, there is evidence that green coffee can lower blood pressure. According to a 2006 study from Japan, green coffee extract prescribed at 140 mg per day for 12 weeks reduced the systolic blood pressure by 5 mmHg and diastolic blood pressure by 3 mmHg in mildly hypertensive adults.
How much caffeine is in green coffee bean extract? According to Caffeine Informer, one popular brand of green coffee extract contains 50 mg of caffeine per capsule, and the recommended dosage is two capsules before every meal for an average dose, three for a moderate dose and four capsules for an accelerated dose. Other brands contain between 20 and 40 mg of caffeine. For reference, a shot of espresso usually contains around 89mg of caffeine.
Does green coffee bean extract give you energy? Yes, green coffee bean extract can help you lose weight and actually gives you more energy by changing the way your digestive system absorbs nutrients from the foods you eat.
Can you eat green coffee beans? Yes, although you may not like the taste. Raw, or green, coffee beans are highly acidic and are said to have a “grassy” or “woody” flavor. They are much harder than roasted beans, making them difficult to chew.
Does green coffee taste like coffee? Coffee gets its flavor when it is roasted. Because green coffee extract is made with only unroasted, 100% Arabica beans – yes, you read that correctly, unroasted coffee – it doesn’t taste like traditional, roasted coffee.
What is the recommended dosage of green coffee bean extract? The recommended dosage varies per person and what exactly you are trying to achieve with a green coffee bean extract supplement. The main therapeutic ingredient in green coffee bean extract is chlorogenic acid. Most studies using a dose of around 150-300 mg of chlorogenic acid. Depending on the concentration, this can require a dose of green coffee bean extract ranging from 300 to 2000 mg. The manufacturer’s recommended dose is often a good place to start when taking green coffee bean extract.
Are there any side effects from taking green coffee bean extract supplements? Overall, green coffee bean extract is considered a relatively safe supplement. Side effects occur if someone is sensitive to caffeine. Caffeine side effects include nervousness, insomnia, rapid heartbeat and anxiety. Chlorogenic acid, the active ingredient in green coffee bean extract, can also act as a laxative in certain individuals and cause diarrhea. Green coffee bean extract can also cause allergic reactions in certain individuals.
Green coffee bean extract comes from unroasted coffee, giving it a higher concentration of healthy compounds such as chlorogenic acid. Green coffee bean extract has a wide range of health benefits, including speeding weight loss, regulating blood sugar, and lower blood pressure.
Studies have shown that green coffee bean extract is an effective weight loss agent, causing reductions in body fat and increasing lean muscle mass (12).
It also helps regulate blood sugar levels, increasing insulin sensitivity, and slowing the release of sugar into the blood (13).
Green coffee bean extract is also effective for lowering high blood pressure and improving vascular function. It can regulate lipid concentration in the blood, helping reduce cholesterol levels (14).
The caffeine in green coffee bean extract can improve mood, increase concentration and focus, and reduce the risk of developing depression. It has less caffeine than most black coffee, so it’s less likely to cause anxiety and increased heart rate.
Green coffee bean extract is generally considered safe and has few major side effects. It can cause stomach discomfort and digestive issues for some users, especially taken without food. Green coffee bean extract can also increase anxiety in people who are sensitive to caffeine.