Skip to main content

Myth or fact: Does farting burn calories?

Learn the truth and how to improve digestion

Man holding his stomach
SUPERMAO / Shutterstock

Farting can be embarrassing. Regardless, it’s still a bodily function, so it’s not such a far-fetched question to ask, “Does farting burn calories?” Farting is caused by multiple complex processes in the body related to metabolism and digestion. To understand farting’s relationship with calorie expenditure, we have to look at why we fart in the first place. We’ve outlined all our findings below.

What causes someone to fart?

A man in white sweater touching his aching stomach.
Krakenimages.com / Shutterstock

Farting, or flatulence, happens when gas accumulates in the digestive system and is expelled through the rectum. Here are some reasons people fart.

Recommended Videos

Swallowing air

When you eat, drink, or swallow air, some of it ends up in your digestive tract. This air has to be expelled, leading to farting. Chewing gum, drinking carbonated beverages, or eating too quickly can cause you to take in more air, and as a result, you may fart more frequently than normal.

Digesting high-fiber foods

Foods rich in fiber, like beans, lentils, and broccoli, are harder for your body to break down, and this leads to gas production.

Lactose intolerance

Those who are lactose intolerant may experience excessive gas after consuming dairy products.

Gut bacteria

Certain carbohydrates that aren’t fully absorbed in the small intestine can be fermented by gut bacteria, releasing gas. Also, eating food that has bacteria, like food that is already going bad, can mess up your gut, causing you to let out farts.

Medical conditions

In less frequent cases, conditions like irritable bowel syndrome (IBS), celiac disease, or food intolerances can cause excessive gas production and frequent farting.

Does farting burn calories?

Man holding his stomach and a burger.
Towfiqu barbhuiya / Unsplash

Farting itself does not burn any significant amount of calories. The act of passing gas is a passive bodily function that requires little to no effort, so it doesn’t contribute to any noticeable calorie expenditure. Yes, there is some minor muscle activity in the digestive system and rectum during the process, but it’s too small to have an impact on calorie burning.

On average, you burn just about one calorie when you fart. This is far too little to affect overall calorie expenditure or weight loss. If you’re wondering, “Does farting burn calories?” as a way to lose weight, the answer is no — it’s not a viable method. 

Most of the calorie expenditure in your body comes from basic functions like breathing, digestion, and physical activity. If you’re looking for more ways to burn calories, exercises like walking and running are better bets.

Are there any factors that affect whether farting burns calories?

Man with bloated tummy.
Sean S / Unsplash

The factors that determine how many calories are burned during any activity generally depend on the intensity and duration of muscle movement. Since farting involves involuntary muscle contractions that are brief and low intensity, it isn’t enough to burn any significant amount of calories. 

However, if bloating, constipation, or gas causes discomfort, your digestive system may work harder, leading to slight energy usage. Even so, this calorie expenditure would be negligible.

What foods impact your digestive system?

Broccoli in a bowl
Cats Coming / Pexels

Diet plays a huge role in how much gas your body produces. Foods can either promote seamless digestion or contribute to bloating and excessive gas. Foods that cause gas are not always unhealthy, but you may want to avoid them if you’re in a public space or will be around people after eating them.

Foods that have a positive impact

  1. Probiotics: Foods like yogurt, kefir, and sauerkraut contain probiotics that help balance gut bacteria and improve digestion.
  2. Ginger: Known for its anti-inflammatory properties, ginger stabilizes the digestive process and reduces bloating by hastening the stomach’s emptying.
  3. Peppermint: Peppermint tea or oil can help relax the digestive muscles and reduce bloating and gas.
  4. Fennel seeds: Fennel seeds or tea can help relax the muscles in the gastrointestinal tract and reduce bloating and gas.

Foods that have an adverse impact

  1. Beans and legumes: Rich in fiber and complex carbohydrates, these foods are notorious for causing gas due to their slow digestion.
  2. Cruciferous vegetables: Vegetables like broccoli, cauliflower, cabbage, and Brussels sprouts contain raffinose, a sugar that the body has difficulty breaking down, which can cause bloating and gas. 
  3. Dairy products: For those who are lactose intolerant, milk, cheese, and yogurt can cause gas and bloating due to the inability to properly digest lactose (the sugar in dairy).
  4. Carbonated drinks: The bubbles in sodas, sparkling water, and beer can cause you to swallow air, leading to more frequent farting.

Tips for reducing bloating and indigestion

A cup of tea with tea leaves in spoons by it.
Drew Jemmett / Unsplash

Eat smaller, more frequent meals

Large meals can overwhelm your digestive system, leading to indigestion and bloating. Smaller meals are easier to digest. You can divide your food intake into four or five smaller meals instead of three large ones.

Chew food thoroughly and try to eat slowly

Proper chewing aids digestion and prevents swallowing excess air, which can cause gas and bloating. Take your time to chew each bite well and focus on eating mindfully without distractions.

Limit gas-producing foods

Foods like beans, cruciferous vegetables, and carbonated drinks contribute to gas and bloating. It’s best to slowly introduce high-fiber foods to your diet and avoid carbonated drinks. 

Stay hydrated

Drinking water helps maintain healthy digestion, prevents constipation, and reduces bloating. Drink water throughout the day, including before and after meals.

Try herbal teas

Herbal teas like fennel, ginger, or peppermint tea help relax the digestive muscles, reduce gas, and ease bloating. You could drink a cup after meals to aid digestion.

Frequently asked questions

Bowl of foods high in soluble fiber with fruit and nuts and oats
27707 / Pixabay

Is frequent farting normal while losing weight?

Frequent farting can happen both during weight loss and weight gain phases. Changes in diet, especially increased fiber intake or higher vegetable consumption, can cause more gas. Also, as your body burns fat, certain metabolic changes can lead to increased gas production. Maintaining balanced nutrition and drinking plenty of water can help reduce this.

Is farting a lot healthy or unhealthy?

Farting is a normal part of digestion, and passing gas around 10 to 20 times a day is generally considered healthy. However, excessive or foul-smelling gas may indicate digestive issues, food intolerances, or an imbalance in gut bacteria. If it’s accompanied by other symptoms like bloating or pain, consult a healthcare provider.

Christine VanDoren
Christine is a certified personal trainer and nutritionist with an undergraduate degree from Missouri State University. Her…
Does protein make you gain weight? Separating fact from fiction
Everything you need to know about the macronutrient
Man eating chicken

If you’re looking into a high-protein diet, you might have some questions, with one of them being, “Does protein make you gain weight?” The answer isn’t quite a straightforward yes or no.

Protein is a source of food, and all food contains calories. Eating too many calories can lead to weight gain. If you ate nothing but protein, but you ate 3,000 calories of it, you would almost certainly gain weight. However, protein is less likely to lead to weight gain than the other macronutrients (carbohydrates and fat).

Read more
Does the egg diet really work for weight loss?
How to incorporate eggs into nearly every meal
Bowl of eggs

Are you looking to get in better shape, lose a few pounds, and put on some muscle? A common goal among many, numerous diet plans claim to be the one to finally get you looking your best. Following a set of rules can be a great way to feel like your diet is structured and you don't have to think too much about it, but many of these eating methods won't actually get you to where you want to be.

You have likely heard of the Whole30 diet, the keto diet, and the Paleo diet, but what about the egg diet? Keep reading to learn more details and see if you should give it a try.
Benefits of the egg diet

Read more
The pros and cons of a gluten-free diet: Insights from an expert
Looking for gluten-free diet facts? Read this first
Gluten-free cereals corn, rice, buckwheat, quinoa, millet, pasta and flour with scratched text gluten on brown wooden background,,overhead view

If you are someone trying to avoid gluten, then the gluten-free diet is an obvious choice to try. However, with so many myths and misconceptions out there, it can be difficult to determine whether one way of eating really is good for you.

With the gluten-free diet rising in popularity, we wanted to get you answers. Thanks to Dr. Abigail Raffner Basson, RD, LD, a distinguished nutrition instructor at Case Western Reserve University, we are able to distinguish the true gluten-free diet pros and cons so you can get a better idea of what this diet involves and whether you should make it part of your eating regimen.
What is a gluten-free diet?

Read more