Most gas is completely normal. The average person passes gas about 14 times a day and produces roughly two liters of intestinal gas in that time. If you’re dealing with more than that, or it’s causing discomfort, the fix usually comes down to what you eat, how you eat, and a few simple physical techniques to get relief when you need it.
Why Your Body Makes Gas
Gas comes from two sources. The first is swallowed air. Every time you eat, drink, or swallow saliva, a small amount of air travels into your stomach. Most of it comes back up as a burp. The second, and usually bigger, source is fermentation in your large intestine. When certain carbohydrates aren’t fully digested and absorbed in your small intestine, bacteria in your colon break them down and produce gas as a byproduct. The more undigested material that reaches your colon, the more gas you’ll produce. This is why a bowl of beans affects you differently than a bowl of rice.
Foods Most Likely to Cause Gas
The biggest gas producers are foods high in fermentable carbohydrates, sometimes grouped under the term FODMAPs. These aren’t “bad” foods. Many are nutritious. But if gas is bothering you, these are the categories to look at first:
- Legumes and pulses: kidney beans, split peas, baked beans, falafels
- Certain vegetables: onion, garlic, artichoke, asparagus, leek, mushrooms, green peas
- Certain fruits: apples, pears, cherries, mango, watermelon, peaches, plums, dried fruit
- Wheat and rye products: wholemeal bread, rye bread, wheat pasta, many breakfast cereals
- Dairy: cow’s milk, ice cream, yoghurt, soft cheeses (especially if you’re lactose intolerant)
- Sweeteners: honey, high fructose corn syrup, sugar-free candy and gum containing sorbitol or mannitol
- Nuts: cashews and pistachios stand out over other varieties
You don’t need to eliminate all of these. The practical approach is to pull back on the most likely culprits for a week or two, then reintroduce them one at a time. This helps you identify your personal triggers rather than following someone else’s list.
How You Eat Matters Too
Swallowed air adds up faster than most people realize. Eating quickly, talking during meals, drinking through straws, chewing gum, sucking on hard candy, and drinking carbonated beverages all force extra air into your stomach. Smoking does the same thing.
A few simple changes can make a noticeable difference: chew each bite thoroughly and swallow before taking the next one, sip from a glass instead of a straw, save conversation for after the meal, and swap sparkling drinks for still ones. These adjustments are especially helpful if your main symptom is frequent belching rather than lower gas.
Quick Relief for Trapped Gas
When gas is already causing pressure or cramping, movement is the fastest way to help it pass. A short walk after a meal encourages your intestines to keep things moving. If you’re at home, a few specific positions can help release trapped gas almost immediately.
Wind-relieving pose is the classic: lie on your back, bring your knees toward your chest, and gently hug them in. Hold for several breaths. Child’s pose works similarly. Kneel, sit back on your heels, then walk your hands forward and let your torso rest on your thighs with your forehead on the floor. A two-knee spinal twist, where you lie on your back and drop both bent knees to one side, can also help.
Abdominal self-massage is another option. Lie on your back and use your hands to make slow, clockwise circles across your belly. This follows the natural path of your colon and can help move gas along. With any of these techniques, focus on slow, deep breathing. Let your belly expand with each inhale and draw it inward with each exhale.
Over-the-Counter Options
The two most common products on pharmacy shelves work in completely different ways. Simethicone (the active ingredient in Gas-X and similar products) breaks up gas bubbles in your stomach and intestines so they’re easier to pass. It doesn’t reduce how much gas your body produces. The evidence for its effectiveness is honestly weak, but many people find subjective relief, and it’s considered very safe.
The enzyme product sold as Beano works differently. It contains an enzyme that breaks down the specific complex sugars found in beans, vegetables, and grains before they reach your colon. By digesting those sugars earlier, there’s less material for bacteria to ferment. You take it with or just before a meal. It won’t help with gas you already have, but it can prevent gas from high-fiber meals. A randomized controlled trial in children found it effective at reducing gas from these foods.
Activated charcoal is another option you’ll see on shelves. Like simethicone, the clinical evidence is limited, but some people report it helps absorb gas in the intestine.
Peppermint Oil for Ongoing Discomfort
If gas comes with cramping or spasms, peppermint oil capsules are worth considering. Peppermint oil acts as a smooth muscle relaxant in the gut. Its main compound, menthol, blocks calcium channels in the intestinal wall, which prevents the muscles from contracting too forcefully. This relaxation can ease the cramping that makes trapped gas painful and help it pass more easily. Enteric-coated capsules are designed to dissolve in the intestine rather than the stomach, which reduces the chance of heartburn.
What About Probiotics?
Probiotics are heavily marketed for digestive issues, but the evidence for gas specifically is disappointing. A systematic review looking at 15 studies and nearly 1,500 patients with irritable bowel syndrome found that probiotics tested so far do not reduce flatulence. A few individual studies showed modest benefits, but results were inconsistent across different strains. The American Gastroenterological Association’s clinical guidance goes further, stating that probiotics should not be used to treat bloating and distention. If you’re already taking a probiotic and feel it helps, there’s little downside. But if you’re buying one specifically for gas, the evidence doesn’t support the expense.
When Gas Signals Something Else
Occasional gas, even daily gas, is normal human biology. But persistent, excessive gas that doesn’t respond to dietary changes can sometimes point to an underlying condition like celiac disease, irritable bowel syndrome, or gastroparesis (slow stomach emptying). These conditions impair digestion or absorption in ways that send more undigested food to the colon.
Pay attention if gas comes alongside any of these: blood in your stool, unexplained weight loss, a persistent change in how often you have bowel movements or what they look like, ongoing constipation or diarrhea, or recurrent nausea and vomiting. Any of those combinations warrants a conversation with your doctor, because the gas itself isn’t the problem. It’s a signal that something upstream needs attention.