Yes, farting is good for you. It’s a normal byproduct of digestion, and releasing that gas prevents discomfort, bloating, and pressure buildup in your intestines. The average person passes gas about 15 times a day, though anywhere from a handful to 40 times falls within the normal range.
What Gas Actually Is
More than 99% of intestinal gas is made up of just three compounds: hydrogen, carbon dioxide, and methane. These are odorless. The smell comes from the remaining fraction of 1%, which contains sulfur-based compounds produced when gut bacteria break down certain foods. So most of what you’re passing is completely scentless, and you may not even notice much of it throughout the day.
Your gut bacteria are the main producers of this gas. When microbes in your large intestine ferment fiber and other carbohydrates that your small intestine couldn’t fully absorb, they release hydrogen, carbon dioxide, and methane as byproducts. This is a sign that your digestive system is working as designed. You also swallow air throughout the day while eating, drinking, and talking, which adds nitrogen and oxygen to the mix.
Why Passing Gas Helps Your Body
The most straightforward benefit is pressure relief. Excess intestinal gas is the most common cause of that tight, full, pressurized feeling in your abdomen. Holding it in doesn’t make it disappear. The gas stays in your digestive tract, building pressure against your intestinal walls and anal sphincter muscles. In the short term, this can cause pain, bloating, indigestion, and even heartburn.
There’s also a possible long-term concern. Research from the 1970s suggested that habitually holding in gas could be associated with diverticulitis, a condition where small pouches along the digestive tract become inflamed or infected. The theory is that chronic pressure buildup contributes to the formation of these pouches. More recent research hasn’t confirmed a clear causal link, but the logic behind avoiding unnecessary pressure in the colon still holds.
The Surprising Role of Smelly Gas
Hydrogen sulfide, the compound responsible for the rotten-egg smell, is actually a signaling molecule your body uses for several important functions. In small amounts, it helps relax smooth muscle in the intestines, supports blood vessel dilation, protects cells from certain types of damage, and plays a role in cellular energy production. Your body produces hydrogen sulfide on its own, not just through bacterial fermentation, because it serves these protective purposes.
In the colon specifically, hydrogen sulfide helps regulate secretion and has shown protective effects against tissue injury in animal studies. This doesn’t mean smellier gas is healthier, but it does mean the compound behind the odor isn’t purely waste. It’s part of your body’s internal chemistry.
Gas as a Sign of Good Digestion
Foods that produce the most gas tend to be the ones that are best for you: beans, lentils, whole grains, cruciferous vegetables like broccoli and cauliflower, onions, and garlic. These are all high in fiber or complex carbohydrates that feed beneficial gut bacteria. When those bacteria ferment this fiber, gas is the natural result. If you’ve recently increased your fiber intake and notice more flatulence, that’s your microbiome responding to better fuel.
People sometimes cut back on these foods to reduce gas, but that trades a minor social inconvenience for a real nutritional loss. Your gut bacteria need fermentable fiber to thrive, and the short-chain fatty acids they produce during fermentation (alongside the gas) help nourish your colon lining and support immune function. A diet that produces zero gas is almost certainly too low in fiber.
When Gas Signals a Problem
Farting itself is healthy, but a sudden, persistent change in how much gas you produce, or gas paired with other symptoms, can point to an underlying issue. Conditions like irritable bowel syndrome, celiac disease, and other malabsorption disorders often cause increased gas or gas pain because food isn’t being broken down properly in the small intestine, leaving more material for bacteria to ferment.
Pay attention if excessive gas comes with any of the following:
- Bloody stools
- Unexplained weight loss
- Persistent diarrhea or constipation
- A noticeable change in stool consistency
- Ongoing nausea or vomiting
These combinations suggest something beyond normal digestion. Prolonged abdominal pain or chest pain alongside gas warrants immediate medical attention, since chest pain in particular can mimic or mask cardiac issues.
How to Manage Gas Without Suppressing It
If you’re bothered by the volume or timing of your gas, a few adjustments can help without requiring you to clench and hold. Eating more slowly and chewing thoroughly reduces the amount of air you swallow. Gradually increasing fiber intake, rather than jumping from low to high overnight, gives your gut bacteria time to adjust and typically reduces the initial spike in gas production.
Physical movement helps too. Walking after meals encourages gas to move through and out of your digestive tract rather than pooling and causing cramps. If trapped gas is a recurring problem, peppermint oil capsules can help relax intestinal muscles and allow gas to pass more easily. Over-the-counter options containing simethicone work by combining smaller gas bubbles into larger ones that are easier to release.
The bottom line: your body produces gas because your digestive system is doing its job. Letting it out is the healthy default.