Several over-the-counter products can relieve gas, and the best choice depends on whether you want to treat gas you already have or prevent it from forming in the first place. Simethicone is the most widely used option for immediate relief, while enzyme supplements and dietary changes work better as preventive strategies.
Simethicone for Immediate Relief
Simethicone is the standard go-to for gas you’re already feeling. It works by breaking up gas bubbles in your digestive tract so they’re easier to pass. You can find it in products like Gas-X, Mylicon, and many store brands. The typical approach is to take it after meals and at bedtime, up to four times a day. Don’t exceed six tablets or eight capsules per day.
Simethicone won’t prevent gas from forming, but it can make bloating and pressure more manageable once symptoms hit. It’s generally well tolerated and doesn’t get absorbed into the bloodstream, which is why it’s considered a safe first option for most people.
Enzyme Supplements That Prevent Gas
If certain foods predictably give you gas, enzyme supplements taken before eating can stop the problem at the source. Two types are worth knowing about.
Alpha-galactosidase (sold as Beano) breaks down the complex sugars in beans, broccoli, cabbage, cauliflower, Brussels sprouts, onions, corn, and other vegetables that your body can’t digest on its own. When those sugars reach your large intestine undigested, bacteria ferment them and produce gas. The key is timing: swallow a capsule right before your first bite, or within 30 minutes of starting the meal. Taking it after that window won’t help much.
Lactase supplements (sold as Lactaid) are specifically for people who get gas from dairy. If your body doesn’t make enough of the enzyme that breaks down lactose, milk, cheese, and ice cream can cause significant bloating and gas. Lactase supplements come in different strengths, typically ranging from 3,000 to 9,000 units per tablet. You take them with your first bite of dairy, and if you’re still eating 30 to 45 minutes later, you may need a second dose. If dairy consistently causes problems, this is one of the most effective and targeted solutions available.
Peppermint Oil for Bloating
Peppermint oil relaxes the smooth muscle in your digestive tract, which can ease the cramping and pressure that often accompany gas. Research suggests it works by calming the muscles that line your gut, helping trapped gas move through more easily. Look for enteric-coated capsules, which dissolve in your intestines rather than your stomach. This matters because peppermint oil released in the stomach can worsen heartburn.
Peppermint tea is a gentler option that some people find soothing, though it delivers a much lower concentration of the active oils than capsules do.
Probiotics for Recurring Gas
If gas is a chronic issue rather than an occasional one, probiotics may help over time. A large analysis of 23 trials involving over 2,500 people with irritable bowel syndrome found that probiotics significantly improved bloating and flatulence compared to a placebo. The strains studied most often included various species of Lactobacillus and Bifidobacterium.
Probiotics aren’t a quick fix. They work by gradually shifting the balance of bacteria in your gut, which can take several weeks. And results vary widely from person to person. If you try a probiotic and see no improvement after a month, a different strain or a different approach may be more useful.
What About Activated Charcoal and Ginger?
Activated charcoal is sometimes marketed for gas and bloating, but the evidence is mixed at best. While it’s proven effective for certain emergency uses in hospitals, results for everyday gas relief are conflicting. Regular use can cause constipation, reduce nutrient absorption, and lower the effectiveness of other medications you might be taking. The FDA doesn’t regulate activated charcoal supplements, so quality and dosing can be inconsistent. It’s not a strong recommendation for routine gas.
Ginger has a long folk history as a remedy for flatulence and digestive discomfort, but clinical trials haven’t confirmed much benefit for gas specifically. One controlled study using 1 to 2 grams of ginger daily for 28 days found no significant difference from placebo for IBS symptoms. Some people still find ginger tea helpful for mild bloating, but don’t expect dramatic results.
Dietary Changes That Reduce Gas
What you eat matters more than what you take. If gas is a regular problem, a low-FODMAP diet is one of the most effective strategies. FODMAPs are a group of short-chain carbohydrates found in foods like wheat, garlic, onions, apples, beans, and many dairy products. These carbohydrates are poorly absorbed in the small intestine and get fermented by gut bacteria, producing gas.
The diet works in phases. The first phase eliminates high-FODMAP foods for two to six weeks while symptoms settle. After that, you reintroduce foods one at a time to identify your specific triggers. Up to 75% of people with IBS see meaningful improvement, though the diet works best with guidance from a dietitian who can help you avoid unnecessary restrictions.
Even without a formal FODMAP approach, a few simple habits help. Eating slowly reduces the amount of air you swallow. Cutting back on carbonated drinks eliminates an obvious source of gas. And cooking vegetables like broccoli and beans can break down some of the compounds that cause trouble when eaten raw.
Breathing Techniques for Bloating
This one surprises most people, but gastroenterology guidelines now recommend diaphragmatic breathing as a treatment for bloating and distention. Slow, deep belly breathing increases activity in the vagus nerve, which helps regulate digestion and relaxes the stress response that can worsen bloating. It’s particularly effective for people whose gas and bloating seem to spike with stress or anxiety. A few minutes of focused breathing after meals costs nothing and has no side effects.
When Gas Signals Something Else
Everyone produces gas. Passing gas 13 to 21 times a day is completely normal. But certain patterns suggest something more is going on. Pay attention if your gas symptoms change suddenly, if they come with persistent abdominal pain, or if you notice unexplained weight loss, ongoing diarrhea, or constipation alongside the gas. These combinations can point to conditions like celiac disease, inflammatory bowel disease, or food intolerances that need proper evaluation rather than just symptom management.