No, farts do not burn 67 calories; passing gas uses only a tiny amount of energy similar to normal breathing.
The idea that every fart burns 67 calories spreads online because it is funny and a little shocking. For anyone who tracks calories, that number sounds huge for something that takes a second and requires no effort. Once you compare it with real measurements of energy use in the body, the claim falls apart.
This guide looks at how many calories you actually burn, what happens inside your body when you pass gas, and where the 67 calorie fart myth came from. By the end, do farts burn 67 calories turns from a tempting shortcut into the internet joke it always was.
Do Farts Burn 67 Calories? Quick Answer And Context
When someone asks, “do farts burn 67 calories?”, the hidden question is whether a split second of muscle movement can rival a short walk or a small snack. The quick answer is no. A single fart uses so little muscle effort that the energy cost sits far below one calorie.
Your body already spends most of its calories on round-the-clock work such as breathing, pumping blood, keeping body temperature stable, and running the brain and other organs. That constant background burn is called basal metabolic rate. For many adults it lands well above 1,000 calories per day before any planned exercise enters the picture.
Extra movement on top of that, like walking to the shop, climbing stairs, or doing chores, adds more calories burned. Passing gas uses only small muscles in the abdomen, diaphragm, and pelvic floor for a very short moment. Compared with walking or climbing, the extra energy used during a fart is tiny.
Do Farts Burn 67 Calories Myth And Real Calorie Burn
The 67 calorie claim seems to trace back to online jokes and misread posts about the chemical energy in gas or playful unit conversions. Once the number left that context and became a meme, many people repeated it without checking whether it matched any real data.
No controlled study has shown that one fart burns dozens of calories from body fat. Health writers who have reviewed this topic point out that a short muscle twitch cannot match the energy cost of real exercise. To see how far the myth drifts from reality, it helps to compare it with activities where energy use has been measured.
| Action | Approximate Calories Burned | What It Represents |
|---|---|---|
| Basal metabolism for one day (average adult) | 1,300–1,800 calories | Energy used to keep the body alive at rest. |
| Brisk walking, 30 minutes | 120–150 calories | Steady movement using large leg muscles. |
| Light housework, 30 minutes | 60–90 calories | Sweeping, tidying, washing dishes, and similar tasks. |
| Climbing stairs, 10 minutes | 70–100 calories | Short bursts that raise heart rate and breathing. |
| Typing at a desk, 30 minutes | 30–40 calories | Slightly above resting burn. |
| Laughing hard, 10 minutes | 10–20 calories | Extra breathing and light torso movement. |
| Passing gas once | < 1 calorie | Brief release with tiny muscle effort. |
If a single fart really burned 67 calories, a handful of farts would rival half an hour of walking. Human physiology does not work that way. The muscles involved in flatulence are small, the pressure is low, and the movement lasts for only a moment.
How Your Body Actually Burns Calories
Weight change over time comes down to energy balance: calories from food and drink on one side, and calories out through metabolism and movement on the other. The largest share of calories out comes from basal metabolic rate. Medical groups describe basal metabolic rate as the energy your body spends on core tasks such as breathing, circulation, nerve activity, and cell repair even while you rest.
On top of that background burn, daily life adds more. Walking to the bus stop, carrying groceries, playing with children, doing housework, and planned exercise sessions all stack small pieces of extra energy use. Over weeks and months those pieces matter for weight far more than any brief reflex such as passing gas.
Basal Metabolic Rate In Simple Terms
Think of basal metabolic rate as the “always on” setting for your body. Research shows that it often accounts for around two thirds of the calories a person uses in a day. Organs such as the brain, liver, heart, and kidneys never take a break, and muscle tissue needs fuel even when you sit still.
Health information from sources such as Mayo Clinic explains how factors like body size, sex, age, and muscle mass change basal metabolic rate. People with more lean muscle tend to burn more at rest. As people grow older and muscle mass often falls, basal metabolic rate usually drops unless strength training or other active habits help preserve it.
What Happens In Your Body When You Fart
To understand why do farts burn 67 calories is not realistic, it helps to know what a fart actually is. Gas in the digestive tract mainly comes from swallowed air and from bacteria in the large intestine breaking down undigested carbohydrates. The U.S. National Institute of Diabetes and Digestive and Kidney Diseases notes that this process is normal and happens in everyone.
Most people pass gas many times a day. The exact number varies, yet flatulence alone usually reflects everyday digestion. Diet, the balance of bacteria in the gut, and how quickly someone eats or drinks all shape how much gas forms. Foods such as beans, onions, some whole grains, and sugar alcohol sweeteners often produce more gas for many people.
Muscles Involved During A Fart
When gas builds in the rectum, nerves there sense stretch and create the urge to release it. Several muscles then work together: the diaphragm and abdominal wall shift pressure inside the abdomen, and the anal sphincter relaxes just enough to let gas pass. The event usually ends in one or two seconds.
Any muscle movement, even one that sets off laughter, uses some stored chemical energy. In this case the amount is tiny. The pressure difference is low, the gas travels only a short distance, and the muscles do not lift or push a heavy load. From an energy point of view, a single fart looks more like taking a deep breath than doing a set of squats.
Why Farting Can Feel Like A Relief
The sense of comfort after passing gas comes from pressure, not from calorie burn. Gas stretches the walls of the intestine, which can lead to cramping or a swollen feeling. When the gas leaves, that stretch eases and the nerves that were firing calm down. The body reads that change as relief, while energy use hardly shifts.
Better Ways Than Farting To Burn 67 Calories
If you want to match the mythical fart workout with real movement, everyday activities work well. The numbers below are rough estimates for an average adult, yet they show how easy it is to burn around 67 calories with normal movement instead of hoping that do farts burn 67 calories in the bathroom.
| Activity | Time To Burn ~67 Calories | Extra Perk |
|---|---|---|
| Brisk walking on level ground | 10–15 minutes | Helps heart health and mood. |
| Easy cycling on a stationary bike | 10–12 minutes | Gentle option for sore joints. |
| Light bodyweight exercises at home | 8–12 minutes | Builds strength and balance. |
| Vacuuming or mopping floors | 15–20 minutes | Leaves the living space cleaner. |
| Playing active games with children | 10–15 minutes | Adds movement and shared fun. |
| Climbing stairs at an easy pace | 5–8 minutes | Strengthens legs and lungs. |
| Dancing in the living room | 10–15 minutes | Lifts mood and loosens stiff muscles. |
These tasks spread effort across large muscle groups and last long enough to create a clear energy cost. They also bring extra benefits such as better stamina, strength, and balance. A quick burst of gas does not deliver any of that.
When Gas And Bloating Need Medical Advice
Flatulence on its own is a normal part of digestion. That said, gas that comes with sharp or lasting pain, sudden changes in bowel habits, visible blood in the stool, fever, or unplanned weight loss can signal a medical problem. Conditions such as irritable bowel syndrome, celiac disease, or lactose intolerance can all change how much gas forms and how it feels.
Health agencies encourage people with ongoing discomfort, severe bloating, or worrying changes in digestion to talk with a doctor or another qualified health professional. A clinician can check for underlying causes, review medication side effects, and guide changes in eating patterns or other habits in a way that fits someone’s full health picture.
Practical Tips For More Comfortable Digestion
While a fart will never replace a workout, day to day habits can shape both gas levels and overall comfort. Eating more slowly reduces the amount of air swallowed. Cutting back on fizzy drinks can lower gas that comes from carbonation. Some people notice that large amounts of certain foods, such as beans, cabbage, or dairy, bring more gas, so they adjust portion size or timing instead of dropping those foods entirely.
Regular movement helps the intestines keep contents moving. Light walking after meals can ease feelings of fullness. Drinking enough water keeps stool softer, which can reduce straining during bowel movements and lower pressure in the rectal area.
If you feel tempted to lean on the idea that do farts burn 67 calories, it helps to remember the larger picture. Farts are a normal product of digestion and a reliable source of humor, yet not a strategy for weight loss. Steady patterns around food, movement, sleep, and medical care, when needed, carry the real influence over long term weight and health.