Most gas is normal, and you can reduce it significantly by changing what you eat, how you eat, and how you move. The average healthy adult passes gas between 14 and 23 times a day. If you’re well above that range, dealing with painful bloating, or noticing a particularly foul smell, there are specific strategies that work.
Why You Have So Much Gas
Gas comes from two sources: swallowed air and bacterial fermentation in your colon. Swallowed air tends to cause burping and upper bloating, while fermentation produces the gas that exits the other end. When bacteria in your large intestine break down carbohydrates your small intestine couldn’t fully digest, they produce hydrogen, methane, and carbon dioxide. Those gases are odorless. The smell comes from a small fraction of sulfur-containing gases, particularly hydrogen sulfide, produced when gut bacteria break down sulfur-rich amino acids from your diet.
Understanding which source is driving your problem helps you pick the right fix. If your issue is volume (lots of gas, not especially smelly), the culprit is usually fermentable carbohydrates or swallowed air. If the problem is odor, sulfur compounds in your food are likely to blame.
Cut the Foods That Ferment Most
Certain carbohydrates are poorly absorbed in the small intestine and get fermented by bacteria in the colon, producing large volumes of gas. The biggest offenders fall into a group called FODMAPs, which includes specific sugars and fibers found in everyday foods. The most common gas-producing foods are beans and lentils, dairy-based milk and yogurt, wheat-based bread and cereal, onions and garlic, and fruits like apples, pears, cherries, and peaches. Vegetables like asparagus and artichokes are also high on the list.
A structured low-FODMAP approach, where you temporarily remove these foods and reintroduce them one at a time, reduces digestive symptoms in up to 86% of people. You don’t necessarily need to avoid all of these foods forever. The goal is to identify your personal triggers. Some people react strongly to dairy but tolerate beans fine, and vice versa. A two-to-six-week elimination period followed by gradual reintroduction gives you a clear picture of what your gut handles well.
Reduce Sulfur for Less Smelly Gas
If your main concern isn’t how much gas you’re passing but how bad it smells, focus on sulfur. Gut bacteria produce hydrogen sulfide by breaking down sulfur-containing amino acids like cysteine and taurine, which are abundant in high-protein foods such as eggs, red meat, and cruciferous vegetables like broccoli and cabbage. Certain bacteria also generate hydrogen sulfide by reducing sulfate, a compound found naturally in some drinking water and preserved foods.
Cutting back on these sulfur-rich foods for a week or two is the most direct way to test whether they’re behind the odor. You don’t have to eliminate protein entirely. Shifting toward chicken, fish, or plant-based proteins that are lower in sulfur-containing amino acids can make a noticeable difference. Even food dyes and certain additives can interact with hydrogen sulfide production in the gut, so reducing processed foods may help as well.
Stop Swallowing So Much Air
A surprising amount of gas has nothing to do with what you eat. It’s just swallowed air. Common habits that lead to excess air swallowing include eating too fast, talking while eating, chewing gum, sucking on hard candy, drinking through straws, consuming carbonated beverages, and smoking.
The fixes are straightforward: chew your food slowly and finish one bite before taking the next. Drink from a glass instead of a straw. Save conversation for after you’ve swallowed. Switch from sparkling water or soda to still beverages. If you use a CPAP machine at night, that can also push extra air into your stomach. A chin strap or switching to a different pressure mode can help.
Stress also changes your breathing pattern in ways that increase air swallowing. If you notice more gas during anxious periods, slow diaphragmatic breathing (inhaling through your nose into your belly rather than shallow chest breathing) can reduce the amount of air reaching your stomach.
Over-the-Counter Options
Simethicone is the most widely available OTC gas remedy. It works by breaking up gas bubbles in your stomach and intestines so they’re easier to pass. The typical adult dose is 40 to 125 mg taken four times a day, after meals and at bedtime, with a maximum of 500 mg in 24 hours. If you’re using chewable tablets, chew them thoroughly before swallowing so they work faster. Simethicone is best for bloating and pressure rather than preventing gas from forming in the first place.
Enzyme supplements containing alpha-galactosidase (sold under brand names like Beano) are designed to break down the complex sugars in beans and vegetables before they reach your colon. The idea is sound, but results vary. The enzyme works best at a mildly acidic pH around 5.0, and the strongly acidic environment of the stomach (below pH 2.0) can deactivate it before it does its job. Taking it with food rather than on an empty stomach helps, because the protein in food buffers stomach acid and protects the enzyme. In one lab study, the enzyme retained full activity when taken alongside soy protein but was completely inactivated within an hour in water alone.
Activated charcoal is frequently recommended online, but the evidence is weak. A controlled study with healthy volunteers found that commonly used doses of activated charcoal produced no significant reduction in sulfur gas release, total gas volume, or abdominal symptoms. The charcoal’s binding sites appear to become saturated during passage through the gut, leaving it ineffective by the time it reaches the colon where most gas is produced.
Physical Techniques That Help
Movement helps trapped gas move through your intestines. A simple walk after meals can make a real difference, but specific body positions are even more targeted. Lying on your back and pulling one or both knees into your chest (sometimes called the wind-relieving pose) compresses the abdomen and helps you pass trapped gas. Gentle spinal twists while seated or lying down massage the intestines and stimulate motility. A forward fold, where you stand and bend at the hips to bring your torso toward your legs, compresses the digestive organs and encourages movement.
Kneeling and sitting back on your heels creates gentle pressure on the stomach area that can relieve bloating. Even lying on your back with your legs extended up a wall reverses blood flow and stimulates circulation through the digestive tract. You don’t need a formal yoga practice. Spending five minutes in two or three of these positions after a meal, or whenever you feel bloated, can provide noticeable relief.
When Gas Signals Something Else
Passing gas frequently is almost never a sign of something serious on its own. But gas combined with other symptoms can point to conditions worth investigating. Pay attention if your gas symptoms change suddenly, if you’re also experiencing persistent abdominal pain, unexplained weight loss, ongoing diarrhea, or constipation. These combinations can indicate food intolerances, small intestinal bacterial overgrowth, celiac disease, or other digestive conditions that benefit from proper diagnosis and targeted treatment rather than general dietary changes alone.