Smelly Farts

There are a number of reasons why your farts smell bad. In most cases, foul-smelling flatulence is associated with the foods you eat and an unbalanced diet. However, there can be more serious causes of rotten-smelling gas.

1. High-fiber foods

Many high-fiber foods can make you pass more gas. It takes longer for these foods to break down in your digestive system, so they ferment over time.

High-fiber foods also sometimes smell, which means your farts may smell too. This is especially true with strong-smelling vegetables such as:

  • broccoli
  • bok choy
  • asparagus
  • cabbage

Your gas may smell like rotten eggs because of the sulfur in fiber-rich foods. Sulfur is a natural compound that smells like spoiled eggs. Many vegetables are sulfur-based.

If this is causing your flatulence, a simple change in diet will be sufficient treatment.

2. Food intolerance

If you have a sensitivity or reaction to certain foods, your gas could have a foul odor. For example, people with lactose intolerance can’t break down the carbohydrate lactose. As a result, it is fermented by bacteria in your gut.

Gluten intolerance, or in its more severe form as Celiac disease, can also cause smelly farts. Celiac disease is an autoimmune disease where there is an immune response to the protein gluten. This leads to inflammation and injury in the intestine, leading to malabsorption. Flatulence can be a result of this.

Other than bad-smelling flatulence, Celiac disease can cause other symptoms:

  • fatigue
  • bloating
  • diarrhea
  • weight loss

Talk to your doctor to get tests and determine if you have any food allergies or sensitivities that may be making your farts smell.

3. Medication

Although uncommon, certain medications can cause smelly flatulence. Antibiotics kill off harmful pathogens in the body. They also destroy some of the good bacteria in your stomach, which aids digestion. Without this good bacteria, your gas may smell. You could also experience bloating and constipation.

Treatment for this cause involves changing medication, which you should not do without talking to your doctor first.

4. Constipation

Constipation indicates that you have a buildup of stool, or poop, in your colon. If you can’t poop regularly, it can cause bacteria and odor to develop. The end result is foul-smelling and sometimes painful gas.

Taking over-the-counter laxatives can be a simple home remedy for constipation.

Shop for laxatives

5. Bacteria buildup and digestive tract infections

When your body digests food, it extracts nutrients and sends them to the bloodstream. The waste products are sent to the colon. Disrupting the digestion process can cause an overgrowth of bacteria.

Some bacteria can cause infection in the intestines and digestive tract. This may cause a higher volume of gas than normal and a strong-smelling odor. People with digestive tract infections also often have abdominal pain and diarrhea.

Visit your doctor to determine if you have a bacterial infection. If you do, they will prescribe antibiotics to clear the infection and get you well.

6. Colon cancer

A more rare cause of smelly farts is colon cancer. When polyps or tumors form in the digestive tract, it can cause a partial bowel obstruction, which results in gas buildup and bloating.

If you begin to experience abnormal smelling gas and discomfort, and a change in diet or medication doesn’t affect your symptoms, call your doctor for full evaluation. They can determine whether a colonoscopy is warranted. Treatment for colon cancer varies based on the stage of cancer. It can include surgery to remove tumors and chemotherapy to kill cancer cells.

How do you stop smelly farts?

Share on PinterestSmelly flatulence may be caused by high fiber in food, constipation, and bacteria.

Causes of smelly flatulence can range from harmless to potentially severe. It may not always be easy to identify what is behind smelly flatulence due to the number of potential causes.

Many reasons for smelly flatulence revolve around food or medication. However, some causes may indicate an underlying health condition.

The following are some of the more common causes of smelly flatulence:

  • intolerance to food
  • high fiber in food
  • medications
  • constipation
  • bacteria or infections
  • colon cancer

Intolerance to food

Food intolerance is a very common cause of bad odor flatulence.

Typical conditions that can cause smelly flatulence include lactose and gluten intolerances. In both of these conditions, the body’s inability to break down lactose or gluten causes smelly gas to build up and eventually be released.

Other people may have food intolerance due to a disease such as celiac disease.

Celiac disease is an autoimmune disease that causes injuries to the digestive tract. People with celiac disease have difficulty digesting gluten, which is found in wheat products.

A person with celiac disease may also experience:

  • weight loss
  • bloating
  • diarrhea
  • fatigue

If a person suspects food allergies or intolerances, they should see a doctor to test for these conditions. This will help find the exact cause and allow the person to avoid foods that contain the offending ingredient.

Food high in fiber

Share on PinterestFoods high in fiber, such as broccoli, may cause flatulence to be smelly.

High-fiber foods are difficult to digest. Although very good for people’s overall health and well-being, these slow-digesting foods break down or ferment in the digestive tract. The fermentation process produces odorous gas.

In some cases, foods higher in fiber have a distinctive odor. The natural odor from these foods can also cause flatulence to be smelly.

Some foods that may cause odors include:

  • cabbage
  • broccoli
  • asparagus
  • garlic

High-fiber foods often also contain more sulfur than other types. This can cause the makeup of a person’s fart to change to include more sulfur, which has a distinct odor and will cause the person to produce smellier gas.


Certain medications can cause someone to produce smelly gas as they are digested.

One of the more common culprits is antibiotics. Antibiotics may kill off some of the healthful or “good” bacteria in the digestive tract while they work to destroy an infection.

The removal of the good bacteria causes an imbalance in the digestive tract. The imbalance can cause a person to produce bad smelling gas. This excess gas can also lead to uncomfortable bloating and constipation.


Constipation occurs when stool builds up in the colon or large intestine and cannot exit. This may be due to taking certain medications, poor diet, or other biological causes.

The buildup of stool in the colon often causes a buildup of smelly gases to occur alongside. This extra gas may cause bloating and discomfort. When finally released, the gas is often smelly.

Bacteria and infections

The digestive tract is responsible for breaking down foods into usable nutrients, which are absorbed into the blood. It also produces waste, which is passed through the colon.

The digestive tract relies on several different components to do this, including its resident good bacteria.

At times, the levels of bacteria in the digestive tract may become imbalanced, potentially leading to an infection. The infection will often cause:

  • smelly, excessive gas
  • pain in the abdomen
  • diarrhea
  • fever
  • nausea
  • vomiting
  • fatigue

When a person experiences any of these symptoms, they should consult a doctor as soon as possible.

Colon cancer

Though not as common, a person may experience excessive smelly gas due to the presence of cancer of the colon. Cancerous polyps or tumors can form blockages that cause gas to build up in the intestine.

One early warning sign is when changes in diet or medication do not stop foul-smelling gas from occurring.

After 50 years of age, a person at average risk for colon cancer should be tested to check for colon cancer.

Last weekend, I was getting ready to run a half-marathon with a group of girlfriends. We were all feeling good and ready to race—except one of us. Let’s call her Julia.

With 24 hours to go until we’d be road-tripping to the race, Julia was facing some gastrointestinal distress. “I’m going to have to get some fast food on the way down there,” she texted me the morning before bib pickup. “That usually gets it going.” Julia hadn’t pooped in three days—but that was somehow the least of her concerns. “The worst thing right now is the gas,” she texted me, followed by a series of emojis.

I may have laughed—after all, we were driving to the race in separate cars—but Julia’s problem was very real. Smelly farts are no fun for any of the parties involved. But before you resort to the McDonald’s drive-thru, here’s why your gas might be particularly pungent and how you can prevent it—if only for the sake of your coworkers and fellow road-trippers.


“Passing gas is a completely normal bodily function,” says Lisa Ganjhu, gastroenterologist and clinical associate professor of medicine at NYU Langone Medical Center in New York City. “Think of it as your body’s vent or exhaust system.” Gas, Ganjhu explains, is a byproduct of the digestion of all the food we consume. So as you eat, your body digests as much as it can. But the bacteria left over in the GI tract—mostly carbohydrates—causes gas. “You poop out fiber, but methane gas or sulfur is the byproduct that has to come out of the body another way,” Ganjhu says. “As gas passes through the body, it comes out the rectum as flatus, or a fart.” (Hit the reset button—and burn fat like crazy with The Body Clock Diet!)


Quite simply, you fart what you eat. “The smell of your gas is based on what you’re eating,” says Ganjhu. “Eating very fragrant, cruciferous vegetables, like broccoli—those are sulfur-based, so your gas will automatically smell very strongly.” If you’ve ever passed gas that smells like rotten eggs, it’s probably because you ate something high in sulfur, like asparagus or cabbage, bok choy, or cabbage. These foods smell strong before they go into the body, so it’s not surprising they’re stinky on the way out, too. “If you bottled the gas you’re passing and got it into a lab, you’d see all kinds of different, fragrant gases, including sulfur and methane,” Ganjhu says. Plus, she adds, if you have any food sensitivities or intolerances, your body might react to that with stronger-smelling gas or bloating.

As for my dear—but constipated—friend Julia? “If you’re constipated, your gas will smell stronger,” says Ganjhu. “Constipation means you have old stool built up in your colon. So as you’re passing gas, there are more smells coming through. Think of it as a clogged exhaust fume.” (Poor Julia.)

Related: 5 Body Odors You Should Never Ignore


First, try to avoid constipation. “Regular bowel movements will help ensure your system is clean and clear,” says Ganjhu. “And don’t hold your gas or stool in! If you do that, it will ferment and get worse. Just pass the gas and walk away.” Ganjhu suggests taking probiotics and ensuring your diet has plenty of fiber to help keep bowel movements regular. One option? Nutrition Essentials Probiotic ($19.99,

Find out what you MUST do next time you go to the doctor:

​ Emojipedia

If you opted for beer or champagne, blame the bubbles. “Any carbonated beverage, especially when added to any different foods you might be drinking while you’re out, can cause gas,” Ganjhu says. The best way to avoid that is to stay hydrated and opt for non-bubbly booze, like wine or sparkle-free cocktails. Try sipping on Barefoot Cellars California Rosé ($12.99,


If your gas burns, it is most likely because you also have diarrhea and your anus is irritated, or because you’ve been eating spicy food. “Avoid eating foods that cause irritation, and consider an over-the-counter pill like Beano or Gas-X to curb digestive issues,” Ganjhu says. Try Beano tablets ($7, “And remember, if it hurts your mouth when you eat it, it’ll probably burn your butt on its way out.”

Related: The Symptoms Of Colon Cancer That Every Young Woman Should Know


“Our gas smells different sometimes, but most of the time it’s not an indication that something is wrong,” Ganjhu says. “There’s generally no type of gas that’s more dangerous or concerning than the other. When it comes to your stool, there are plenty of warning signals—blood, mucus, various colors—but whether your gas smells like eggs or strawberries doesn’t mean something is bad. It’s just a byproduct of what you’re eating.”

Oh, and my friend Julia eventually pooped—just in time for the race! Her gas was gone before she even hit the start line, and 13.1 miles later, her desire to hit up Micky D’s was a distant memory.

Anyone who’s ever ridden in an elevator, carpooled, or stayed over at a new partner’s house for the night has tried to hold in a fart. This is a fact. Sometimes, it works: Other times, the pressure builds too much and your butt lets forth with a noise like angry zoo animals forcibly deflating a zeppelin. So what exactly is happening down there?

According to gastroenterologist Dr. Satish S.C. Rao, your body is going to fight you all the way to expel that excess gas, and it’s a fight your gut is going to win. “The gas in your gut is a mix of nitrogen, hydrogen, oxygen, carbon dioxide, methane and trace gasses like hydrogen sulphide and some other volatile gasses,” he says. “Some of these, like hydrogen, methane and oxygen, can be absorbed by the gut, but nitrogen cannot be absorbed, and the body will find a way to get rid of it. Sooner or later, it’s going to come back at you — it’ll get stronger and stronger until the bowel vigorously contracts to overcome the anal sphincter resistance.”

The really bad news? By holding in the fart, all you’ve really done is make it more powerful. As the volume of gas increases, the pressure builds, and what eventually escapes is the original fart’s louder, smellier big brother. “If there is a significant volume of gas, the rectum will distend quickly in response,” says Rao. “The anal sphincter will have very little holding ability — it’ll have some, but really not a lot. Eventually, it will make its way out.”

But wait, it gets worse! Not all gas is expelled through the anus: Some will come out of your mouth. While Rao is quick to point out that there are many more likely explanations for bad breath — including issues with dental hygiene; fermentation caused by bacteria in the mouth; problems with the sinus; and chronic infections in the lungs — there are two ways in which your gas can affect your breath. The first of these is when gas is absorbed through the lining of the gut into the bloodstream. From there, it makes its way to the lungs, and is then exhaled.

The other way is far more gross, as it involves gas literally bubbling up from your intestines and coming out as a burp (unlike your regular burps, which are made up of significantly less smelly gas from the stomach). “If you’ve eaten a carbohydrate-rich meal, this will be fermented in the small intestine ,” says Rao. “You’ll belch this gas out.” That’s because, at this point in the digestive process, the gas is still much closer to your mouth than your anus — where gas from the large intestine is expelled — and so it takes the path of least resistance. “When you do this, this fermented gas is going to smell like fermented gas,” says Rao. In other words: Fart-burps. We’re sorry to have ruined your day.

Why Do Some Farts Feel Warmer Than Others?

One fart isn’t typically “hotter” than another, but you may feel more heat than usual depending on what’s happening with your GI system at the time. These treatments can help prevent hot farts and might ease any stomach troubles you’re experiencing, too.

Eat more fiber

Fiber is the secret ingredient for better GI health. When you eat plenty of fiber from fruits, vegetables, beans, and whole grains, you’ll lower your risk for constipation and increase your chances for regular bowel movements.

In other words, fiber keeps poop — and gas — moving right on through and out your rectum.

It’s important to note, however, that some fiber-rich foods, like broccoli, asparagus, cabbage, and Brussels sprouts, can actually increase the amount of gas you expel. They won’t increase the temperature of your farts, but you can anticipate passing a little more wind if you add these foods to your plate.

Take probiotics

When the bacteria in some probiotics are snacking on certain nutrients in your stomach and intestines, like fiber, they release microscopic amounts of hydrogen gas.

Some other probiotics, however, can actually break down that gas, which will reduce the amount of flatulence you have to pass. Fermented foods like yogurt, pickles, and kombucha are rich sources of these good bacteria.

Add herbs to your diet

Herbs like ginger, peppermint, and cinnamon have natural enzymes and chemicals that help your GI system move food faster. Some of these plants, such as peppermint, also have a calming effect on the intestines. That can help ease symptoms of diarrhea and reduce irritation in the sensitive skin.

Cut carbs

Your stomach can process a great deal of the food you eat, but there are some foods — ones with insoluble fiber, for example — that are just too difficult to break down. As the food sits in your stomach and the bacteria try to eat it, gases build up in your GI tract. That could increase the amount of gas you have.

You don’t want to cut all carbs — many healthy foods like fruits and vegetables are rich in carbohydrates. You should be selective about balancing some easy-to-process carbs with some that have more insoluble fiber. Beans, cabbage, cauliflower, and onions are all serious toot makers.

Drink more water

Air bubbles in carbonated beverages introduce more gas to your GI system. You may burp or belch more often and you may fart a few times. Still drinks, like water, tea, and wine are smarter for cutting the gas in your stomach. Also, staying hydrated helps prevent constipation.

Avoid spicy food

Scale back your spicy food intake if you experience fiery farts and bowel movements. Some of the chemicals in those hot foods can make sensitive rectum skin irritated.

Can we all just talk about the amazing science behind your butthole?

Seriously, the human body’s gastrointestinal system has developed a way to take all of the amazing nutrients we need out of food. Before packaging what we don’t need, into neat little parcels we deliver at a socially acceptable point of the day.

Another thing science has given us for buttholes? Biological evidence of why some men love to bottom – hallelujah.

Oh and beyond that; bums are, of course, booty-ful.

So because the peach 🍑 is such a glorious part of our bodies and your butthole deserves a lot of attention; 🍆 – we’ve put together this guide with everything you need to consider when using your bum.

If the men out there learn to control butthole muscles, you can spunk further

The same muscles you use to hold farts in are the same that help you spunk. The kegels or pelvic floor muscles are found by trying to stop peeing mid stream or just by tightening the muscles that keep you from passing gas. Just like any muscle, doing kegel exercises can make them stronger.

Top tip: if you want to improve your kegel muscles, you can’t use your buttocks, abs or thighs to help. So make sure you concentrate down on your pelvic muscles.

The average poop happens once every 24 hours

But some people only go once every three weeks, and some people go multiple times a day. Dr Patrica Raymond AKA Butt Meddler (the name on her YouTube channel) speaking on Why oh Why’s podcast says pooping is very individual. So long as you aren’t straining, or having to rush to the loo – how you poop is right for you.

Your rectum can come out of your bum

This is called rectal prolapse and can look quite alarming. It looks like a tubular structure, a little like a swiss roll.

It can happen when you’re pooping and pushing too hard. But you may also notice it happens when you cough or sneeze, or even when you’re doing everyday activities, such as walking or standing up. If this happens, you may need surgery, however, treatment may stay by simply introducing more fiber into your diet.

There is biological evidence about why gay and bi men bottom

Researchers believe they have discovered specific biological markers for gay men adopting preferred sexual positions. In other words, gay men might be predisposed to being a bottom or a top. The research shows that bottoms have indicators like having older brothers, being left-handed or not conforming to gender norms from an early age.

You can thank researchers at the University of Toronto Mississauga for this. They believe ‘non-right handedness’ is a major biological factor. Seriously, the study states: ‘Among gay men, variation in gender nonconformity appears to correspond with variation in anal sex role behavior.

Pains in your bum

Hemorrhoids happen around the plexus of veins in your anus lining which can bleed without any pain. However, there are also external ones can be painful and itchy. They happen when you bear down too hard when you’re trying to poop.

When it comes to these more painful external hemorrhoids, using some pre-moistened baby wipes and keeping the area clean is the best way to deal with them. However, if they clot, they can become very painful. If this happens you have two options, you can wait until they heal or go see a doctor and they can cut the hemorrhoid off.

Doctors can literally feel anal cancer

When doctors are performing a rectal exam, they’ll ask you to lay on your side before gloving and lubing up for a good old feel.

They’ll use their finger to feel around the inside of the rectum to see if they come across anything they shouldn’t from bleeding to abscesses. Doctors can use these exams to pretty quickly get a feel whether cancer is present, and then do more tests.

Still want to know more about your butthole being examined?

Of course, you do. And what better way to remember all the key facts about a colonoscopy than with a song. The self proclaimed Doctor Butt Medler has your back. With lyrics like, ‘if you don’t want the cancer, scopin is the answer’ you might need some intestinal fortitude for this one:

‘Doo, doo, doo, looking up my back door.’

That’s just a standard Friday night for us, to be honest. What about you?

You can get botox for your butthole

For those of you who want to bottom like a virgin once more, you can now get your anus rejuvenated. This can be done with lasers, which literally tighten your anus. This can be a cosmetic operation. But the surgery was initially developed to help people with incontinence.

On the Sex Lives Magazine podcast, one journalist who has extensively researched butthole rejuvenation, Brian J Moylan describes it like Trivial Pursuit. Imagine your butthole like a trivial pursuit piece. The cosmetic surgery removes one piece, which are things like tears and hemorrhoids, when it’s gone naturally it will close up and be tighter.

People pass four liters of gas a day

That’s both farts and belching. Think about it as two-liter bottles of soda. It’s a lot of gas. You probably belch and even fart a little bit without even noticing most of the day.

If you’re planning on using your bum for sex, you might want to keep this in mind. Keeping that area clean is important for your comfort anyway, but it also something your partner will appreciate as well. Mary Berry isn’t the only one who doesn’t like a soggy bottom.

If you clench your anus, your farts will be noisier

When you tighten up because you feel the need to let rip, but it’s not a socially acceptable time that makes your farts louder. These noisy farts are because of something called aerophagia, which is swallowing air. Whether it’s drinking through a straw, chewing gum or having fizzy drinks – all this air has got to go somewhere.

Keep in mind, most of this will end up as those non-smelly but loud farts. This is because it is all just air. The reason there is noise is simply because we swallow so much air, and it’s gotta go somewhere fast. Think about when you purse your lips and blow out a raspberry – same principle. So if you really gotta fart (and you’re sure it’s just air) just relax – chances are it won’t smell anyway.

When your farts smell like something has died, it’s because something has

This happens when your body hasn’t absorbed something. Whether it’s carbs or grease, this dead partially digested food gets downstream to your colon and the bacteria that’s in there, eat and ferment what is left over. This is the process creating the smelly gas. Luckily, this kind of gas is generally in small volumes. So these are the farts to save for your own time.

Unfortunately, because these silent but deadly devils come in small amounts, this means people often miss the cue to purse and save it for later. So if you do smell it the person who made it might be just as surprised as you.

Dental Dams are for buttholes too

To prevent contracting a Shigellosis infection, consider using a dental dam when you’re rimming. Exposure to poo passes it during sexual contact with someone who already has it.

Shigellosis is an intestinal disease that causes bloody diarrhea, stomach pain, a fever and the constant need to poo even when your bowels are empty. Of course, keeping that whole area clean is important in keeping the shigellosis away too.

People with bigger butts are more intelligent

One study by the University of Pittsburgh and the University of California at Santa Barbara found that in the women they studied, the bigger their butt – the better they scored on cognitive tests.

Those with bigger hips and butts consistently beat their non-curvy counterparts. The thinking behind this is the hips and butt store essential omega-3 fatty acids which promote brain growth. This becomes an especially useful bank of nutrients for women during pregnancy. The study also showed that not only were the women with big butts more intelligent their kids were too.

Read More On Gay Star News:

WATCH: Bi YouTubers give us the ‘bisexual guide to safe sex’

At least 26% of people injure themselves while grooming their pubic hair

Why Do Some Farts Stink and Some Farts Don’t?

Kids ask a lot of questions. mental_floss has answers. WHY?, our new series for kids and parents, tackles all types of questions children have about how the world works by providing science-based, kid-friendly content. Our answers are written with early readers (ages 4 to 7) in mind, but we think they’re interesting—and educational—for everyone.

Have a question? Send it to [email protected]

Everyone farts, every day. But not all farts are the same. Some farts make no sound but are really stinky. Others are loud but don’t smell. Some you can smell clear across the room, but others you can let out without anyone noticing. (Secret: I’m farting right now!)

The smell of your booty bomb depends on what you’ve been eating. Broccoli, cabbage, onions, eggs, and meat all contain a lot of sulfur, a chemical that helps give rotten eggs their stink. When your body digests, or breaks down, those foods, the teeny-tiny creatures in your gut called bacteria feast upon the proteins in the food that contain sulfur. This process creates smelly gases like methanethiol (METH-ain-THIGH-all). When those gases leave your body, they end up as pungent farts.

All smells are chemicals in the air that your nose can pick up. Farts are made up of chemicals like oxygen, nitrogen, hydrogen, methane, carbon, and the super villain of stinkiness: sulfur. (Sulfur is the reason that skunk spray smells so gross!) The more sulfur in your toots, the more likely they are to clear the room. You also swallow air as you eat or talk. Some of that comes out of your rear end too.

Let’s talk about bacteria again. When you eat carbohydrates (CARB-oh-HIGH-drates) like potatoes, bread, and vegetables, your stomach doesn’t fully digest them. They pass into the small intestine and then the large intestine, which are really long tubes leading to your anus (where poop and farts come out). Bacteria break the carbohydrates into smaller pieces. That releases gases like hydrogen and carbon dioxide. Those gases don’t smell. But other bacteria in the gut take those odorless chemicals and make them into compounds (mixes of chemicals) that do smell. Hydrogen sulfide (HIGH-dro-jen SULL-fide) is the smelliest of the gases that might come out of your butt.

For more fart science, check out AsapSCIENCE’s illustrated video explanation of why your farts don’t smell as bad as other people’s do.

Why Some Farts Smell So Much Worse Than Others

You’re alone in the comfort of your home, so naturally, you let one rip. No shame. But the smell of your own fart is taking over, and the stench is creeping up and suffocating you. Now you’re trapped in your own foul odor — this wasn’t expected! Why is this fart disgusting, when others pass without making their presence known?

Then, as if the heavens parted, the stench disappears. You look around, double-checking that no one is home, then go back to your normal life, safe from suffocation by flatulence.

Why did your fart smell like rotten eggs at the bottom of a New York City trash heap? Was it something you ate? Is there something wrong with you, internally? Do you have a superpower you didn’t know existed? Dr. Myron Brand, a gastroenterologist at Connecticut Gastroenterology Consultants, helps set the facts straight.

What causes farts to smell?

YOU. You have the power to control your own gruesome odor by what you eat — not all farts are created equal. Some smell like bitter alcohol, others smell like three-month-old expired broccoli, and many smell like the aforementioned rotten eggs.

“Smelly odor is not bad, it’s just a function of what you’re eating and what your bacteria is doing inside your gastrointestinal tract. Everyone is different,” Dr. Brand explains. “Foul smell just means the carbohydrates you consume are being malabsorbed — it’s fermented.”

Ironically, the healthier the food you eat, the worse the smell. Fiber-rich foods, such as broccoli, Brussels sprouts, and quinoa, boost gut bacteria, and in return cause you to naturally pass gas. Foods with high sulfur composition, such as red meat, milk, or plant-based proteins, are the culprits of producing the foul odor. When we feed the bacteria in our gut high-protein foods, they produce a sulfur gas, which makes your farts noxious, says Dr. Brand.

“The end product of fermentation in our gastrointestinal tract is gas — carbon dioxide, hydrogen, or methane. And it’s all made from bacteria fermentation.”

But hey, it’s a small price to pay for being healthy… or is it?

So what’s with the rotten egg smell? That sounds like something to be alarmed about.

When the bacteria in your gut break down all that food into hydrogen sulfide, then you produce that ghastly rotten egg fart smell.

“Some people are methane producers, and some people are hydrogen sulfide producers — which causes flatulence to smell like rotten egg. It’s all a function of what you eat,” adds Dr. Brand, helpfully reminding you that eating a steady diet of cabbage and cheeseburgers is bad on virtually every level. The common thread between rotten eggs and farts is the sulfur; if you’ve ever been to natural springs that emit sulfurous gasses, you probably recognized the stench. It may be the only thing your butt, eggs, and natural hot springs have in common.

Is it preventable?

If you have to choose based solely on how much you’ll fart, Dr. Brand recommends going high-protein. “Proteins won’t cause a lot of gas, but carbohydrates will.”

There are more extreme measures you can take, too, though it’s important to understand that what works (or goes horribly wrong) for you may do the opposite in someone else. “As a doctor, you try to manipulate this occurrence with things like the FODMAP diet or probiotics,” Dr. Brand says, which is a science-y way of saying every person is different and it’s a bit of a guessing game as to which foods make one person rip silent-but-deadlies and another go about their day without emitting a hint of methane.

The low-FODMAP diet he mentions is one that limits certain types of carbohydrates that have a tendency to ferment in your gut and, as you now know, produce rancid gas. This diet is tough to follow, since it eliminates seemingly healthy foods like onions and asparagus, so it’s typically used only for people with serious gastrointestinal distress. If your flatulence is really an issue, work with a gastroenterologist or dietitian to pinpoint which carbohydrates are the cause of your discomfort or bloating. You can also check this quick primer on high-FODMAP foods vs. low-FODMAP foods, with low-FODMAP foods being the ones less likely to ferment.

Is it a bad thing?

Eh, not really, unless you surround yourself with people who judge you solely based on your farts, in which case you might want to rethink your friend group. You live in a symbiotic relationship with your gut bacteria — you have to feed them if you want to achieve optimal health. The average (healthy) person farts 10-20 times a day. So farting is normal.

If you continually drive people away with your potent superpower, though, it may be time to see a professional. Usually, though, a fart is a fart is a fart that won’t kill you. “Unless it’s excessive, because that’s a sign that you’re malabsorbing and not digesting carbohydrates,” you’re probably fine moving on with your life, Dr. Brand advises.

So is the rotten egg fart really a shameful odor?

Nope. It just means you’re eating food and digesting it well — and there’s more room on the outside than on the inside.

Sign up here for our daily Thrillist email, and get your fix of the best in food/drink/fun.

If that doesn’t happen, yes, the odor outside can smell like a skunk. So, what about the plans for Buffalo? Brad Termini says the proposed cannabis campus here would be fully enclosed inside a …

A suspected gasoline leak led hanover borough residents to call emergency authorities Dec. 1 when the smell of fuel wafted through homes. The suspected leak of about 800 gallons of gasoline from a …

Cleaning Up Throw Up Steps to Clean the Carpet: Start by removing as much of the vomit as possible. Use a dust pan or other scraper to remove as much as possible. Wrapping a plastic grocery bag over the dust pan works well, then simply fold the bag back off the dustpan when ready to contain the mess. Baton

Foul smelling stool and gas. Feces usually have an unpleasant smell, but it is a smell which is very common and unremarkable. Smelly stools have a strong, putrid smell. Although in most of the cases, foul-smelling stools are related to the foods you eat, and also the bacteria flora resident in colon they might also indicate a health problem.

What Guys Said 6. Skunk is a common fart odor. It’s from a gas called methyl mercaptan (or Methanethiol), which smells like skunk, and is produced in the colon. Nothing to worry about there. As for weed… it’s probably your nose playing a trick on you. Marijuana, as with most natural substances, contains thiols, and thiols stink.

Six years on, his part-time company turns over tens of thousands of dollars despite offering candles which smell like flatulence, vomit and even body odour. Other bizarre flavours include nacho cheese …

To Get Blood Out Of Clothes The average adult has approximately 1.2 to 1.5 gallons (10 to 12 pints) of blood in their body at … either because they rub against clothing, or get caught in jewelry, or itch, or just because … mohamad firdhaus ramli from the Chemistry Department said he did not find any trace of clothing fibre, blood

Mar 01, 2016 · “You’re Definitely Eating Your Fiber”. If your farts are smelling like “rotten eggs,” that scent is generally due to hydrogen sulfide, a gas that’s created when your body breaks down foods with sulfur in them, like the aforementioned vegetables and beans above. If you’re also noticing that your farts are particularly smelly —…

9 Things Your Farts Are Trying To Tell You, If Only You’d Stop Smothering Them

Aren’t you glad somebody else got roped into writing about your farts and what they mean for your body? And there’s lots to write about; farting isn’t just a sign of antisocial behavior or a butt of jokes. (Though it’s definitely been the foundation of humor for most of human history.) Healthy guffing, as it’s called in the United Kingdom (or “tooting” if you’re my prim grandmother), is a sign of a good digestive system; most people pass wind on average five to 15 times a day. If it’s more than that, though, or if farting is accompanied by other symptoms like abdominal discomfort, fever, bloating, diarrhea and other charming things, it could be an insight into something going severely awry in your gastrointestinal system.

The smell of flatulence is one of its most common characteristics, and it’s related to sulfur, or hydrogen sulphide, being released by bacterial fermentation in your gut as it digests food. Sulfur is an almighty stinky gas and can be produced in excess in the digestive system in response to certain types of food, particularly cruciferous vegetables.

If you’re concerned that your flatulence frequency is transmitting a message you’re just not getting, here are nine possible things your breaking wind may be telling you about the state of your health.

1. You Have (Or Just Had) An Infection

Andrey Popov/

The way food is broken down in our bodies is actually fairly complex, but it involves a lot of bacteria and a multistage process, through the stomach, intestines, and colon. The bacteria actually ferment food as it passes through, letting it absorb and transferring waste to be expelled, which means that if you’ve recently had some kind of bacterial upset like a gastrointestinal infection, they might be imbalanced and more likely to act oddly. The result? Flatulence.

If you’re recovering from an infection and have noticed much more gut discomfort than normal, go see your doctor again to rebalance your bacterial flora.

2. You’re Eating Too Fast

Gulping air down into the stomach with your food is actually more common as a source of flatulence and burping than you might think. It’s one of the reasons nutritionists don’t advocate eating on the run, besides the fact that you don’t pay as much attention to what you’re eating; eating as you move or far too quickly can introduce air into the stomach in excessive amounts, and it’s got to come out somewhere. Swallowing air can alsohappen when you’re chewing gum or smoking, too.

3. You Have A Gluten Sensitivity

Dan Kitwood/Getty Images News/Getty Images

Gluten sensitivity seems to be all the rage these days, but people with genuine problems digesting gluten will attest that the problems are actually pretty violent, and do involve some severe gassiness. It’s important to note that gluten sensitivity is not the same as celiac disease, something called a “malabsorption syndrome” where the intestine genuinely cannot absorb anything with gluten in it. Gluten sensitivity means the digestive system has a harder time with gluten-containing foods, but can eventually process them, producing a lot of gas and annoyance in the process.

4. You’re Lactose Intolerant

Dairy in foods may, for many of us, become more difficult to process as we age, and cause more gas and abdominal discomfort. Bacteria in the gastrointestinal tract normally break down and ferment our foods; but in the case of lactose intolerance, a person lacks the lactate enzyme that helps the body absorb dairy products in the intestine, so tasty cheeses pass into the colon and are processed there, with copious gassy results. It’s also much more common than you think: an estimated 98 percent of Southeast Asians, 90 percent of Asian-Americans, 74 percent of Native-Americans, 70 percent of African-Americans, and the majority of Jewish, Latino, and Indian people all suffer from lactose intolerance.

The usual medical advice? Cut dairy out completely for at least a few days, while keeping everything else as normal, and monitor your gas and level of abdominal distress; if the two seem correlated, it’s likely that a low-dairy or no-dairy diet might help your future comfort.

5. You’re Getting Your Fiber

Matt Cardy/Getty Images News/Getty Images

The flatulence associated with some foods is due to their particular composition. Most foods are broken down into nutrients and waste early on in the intestines, but some are a bit more difficult, and that means they need to be passed on to the colon for the process to be completed. That produces gas that needs to be expelled. Foods that contain these sorts of unabsorbable carbohydrates include beans, prunes, lentils, onions, apples and Brussels sprouts.

If your farts are smelling like “rotten eggs,” that scent is generally due to hydrogen sulfide, a gas that’s created when your body breaks down foods with sulfur in them, like the aforementioned vegetables and beans above. If you’re also noticing that your farts are particularly smelly — but not exactly “eggy” — it may also be due to your excessive consumption of meat.

6. It’s A Medication Side Effect

Flatulence is an unfortunate side effect of numerous medicines, many of which are taken by mouth and interact with the digestive system. The one you’re likely most familiar with is ibuprofen, which is meant to be taken with food to minimize its potentially disruptive effects on the stomach. Others include laxatives, statins, and some anti-fungal medicines, so always make sure you read the packet properly before you take any meds to know whether you’ll have a potential gas problem later.

7. You Have Giardiasis


I’ve had personal experience with this one; in 1998, the water supply in Sydney, Australia, where I was born, was contaminated with Giardia intestinalis parasites, and all water from taps had to be boiled before it was safe to drink. Giardiasis is a particularly nasty gastrointestinal condition that needs to be treated by antibiotics to eliminate the parasites in your digestive system, and it’s normally caught through drinking water or cross-contamination. Trust me, you’ll know if you’ve got it: its main hallmark is violent diarrhea.

8. You Have Irritable Bowel Syndrome

Ah, the very common IBS. This genuinely lovely disease doesn’t just feature flatulence on its own: it combines severe digestive system sensitivity (usually in the large intestine) with abdominal cramps, bloating, diarrhea, and constipation. It’s often lifelong and seems to possibly have a genetic component, though it’s not entirely clear what causes it yet. Up to 20 percent of the Western world might suffer from it, though, so you’re definitely not on your own if this is your final diagnosis.

9. You Might Be Going Through Hormonal Shifts


Hormonal upheaval, it’s been suggested, can be responsible for intestinal shifts and corresponding amounts of flatulence. Menopausal women often report an uptick in their gas levels, as do pregnant women (though that’s often to do with pressure on intestinal systems by the growing fetus). But it’s not clear if hormonal changes are actually the culprit, or if menopausal women are actually suffering from a coinciding of symptoms: their hormone levels are changing and their digestive system is agong, and the two might not actually affect one another all that much. Stay tuned for more research on this one.

This post was originally published on March 1, 2016. It was updated on June 10, 2019.

These 5 foods will make your farts smell bad. Really bad.

This is the month when we love to eat, and actually end up eating non-stop. Yes, it’s the festive season! With Navratri and Diwali falling in the same month, we already have, and will continue to, assault our tummies with all kinds of delicacies that our palates just can’t refuse.

It’s also the time when we are most social, because we don’t indulge in food in isolation. In fact, this season is what it is because we come together with our families and friends, and feast on yummy food!

But the one thing nobody wants is to be that guy or girl who can’t handle their food, and ends up farting in the midst of a celebratory get together. Yes, we know that indigestion and gas are part and parcel of the feasting, especially if you’re not used to indulging in copious amounts of rich food.

It’s bound to take a toll on the tummy, and eventually, you will have to find a release for it. And if you are constantly surrounded by friends or family members, the embarrassing moment might just take place in front of them. And even if you release silent annahilators like Chatur Ramalingam from 3 Idiots, trust us, everyone knows where the bomber is.

Really, it’s best if you could just take a few simple steps, avoid overeating a few items, and remain gas-free. So what are the things to avoid? Take a look.

Yes, they might look unsuspecting enough, but eggs are major fart-inducers. How, you ask? They’re chock full of protein and sulphur, which takes a lot of time and exercise to digest.

Eggs are just delicious, but have too much of it and you’ll feel gassy. Picture courtesy: Instagram/ogberniejohnson

Truthfully, we don’t really get much exercise during this time, and that we indulge in roll after roll, or fried goodies dipped in a fluffy, but eggy batter. It’s much more than our tummy can take, so the best thing to do is to go light on the goodies that are loaded with eggy goodness.
Also read: KFC’s new sunscreen will have you smelling like your favourite dish: fried chicken!

Another sulphur-rich ingredient, broccoli masquerades as innocent because it’s also a healthy veggie to have. And yes, this category also includes broccoli’s paler cousin, cauliflower. If you’ve had constant discomfort in your stomach, look around.

Broccoli is a very healthy veggie, but too much of it can lead to smelly farts. Picture courtesy: Instagram/korneva.elena

How many spicy, deep-fried gobhi pakorass have you had? Have you been snacking on gobhi paranthas as well? Or did you think that a green salad full of broccoli would be a good break from all the fried food? Whatever you thought, you were wrong. Reduce the amount of broccoli intake, and your stomach will thank you.

Now this veggie isn’t just full of sulphur. It also has another smelly-gas inducing compound, called methyl mercaptan. It’s quite all right to have cabbage in small amounts.

Cabbage pakoras are irresistible, and yet, the sulphur in it can leave you with indigestion. Picture courtesy: Instagram/uchicook

But if you’re have pakoras and spicy sabjis full of cabbage on the same day, it’s highly likely that you’ll get a gas-attack sooner or later. Strangely enough, the Germans found the best way to have cabbage without giving way to smelly farts–fermentation. Yes, an authentic sauerkraut negates all the effects that simply cooked cabbage can have.

The one way all non-vegetarians celebrate this festive season is by indulging in loads of kebabs and curries. More often than not, they are coated with huge amounts of garlic, which really brings out the flavour of meat.

Garlic makes meaty kebabs and curries what they are, but too much of it is anything but good. Picture courtesy: Instagram/katcatapusan

And who can say no to a spicy garlic pickle with a simple potato-stuffed parantha? Well, if you want to live smelly fart-free, you have to tone down on the garlic intake. Why? Because garlic is as full of sulphur as broccoli or eggs!

Also read: Humble hero or bursting with stuffing: How do you like your parathas?

This is the king of all fart-inducers, and we all know it. Indulge in one too many mooli paranthas, and you’re sure to empty out the room with your farts. The reason behind this is that radish, though rich in fibre (which helps digestion instead of blocking it) is also sulphurous.

Radishes lead to smelly fart, and everyone knows it. Picture courtesy: Facebook/Maalaimalar

So have too much of it, and you’re going to be more uncomfortable than happy. Say yes to one mooli parantha, but stop at that for the sake of your stomach and your family’s sense of smell.

Now, we’re not saying that you shouldn’t indulge in all these goodies, especially when the weather is this good, and you can digest rich food more easily than in summer. But if you’re overloading your tummy with even a bit too much of ALL these ingredients, then smelly farts are inevitable.

So this festive season, indulge in everything you want to eat. But indulge responsibly. Keep your loved ones safe from those smelly farts, and have a happy Diwali!

The smell of farts

Leave a Reply

Your email address will not be published. Required fields are marked *