A bloated stomach usually responds well to simple over-the-counter remedies, dietary adjustments, or both. The right approach depends on what’s causing the bloating: trapped gas, trouble digesting certain foods, constipation, or an imbalance in gut bacteria. Here’s what actually works and when to use each option.
Gas-Relief Tablets for Quick Results
If your bloating feels like pressure from trapped gas, simethicone is the most widely available fix. Sold under brand names like Gas-X and Mylanta Gas, it works by merging small gas bubbles in your gut into larger ones that are easier to pass. It doesn’t get absorbed into your bloodstream, so side effects are rare. The typical adult dose is 40 to 125 mg taken up to four times a day, after meals and at bedtime, with a maximum of 500 mg in 24 hours.
Simethicone works best for bloating you’re experiencing right now. It won’t prevent future episodes, but it can take the edge off uncomfortable fullness relatively quickly. You’ll find it in capsules, chewable tablets, and liquid form.
Digestive Enzymes for Food-Related Bloating
Some bloating happens because your body can’t fully break down specific foods, and the undigested material ferments in your intestines, producing gas. Two enzyme supplements target the most common culprits.
Lactase helps if dairy is the problem. Your body may not produce enough of this enzyme on its own, leaving the natural sugar in milk and cheese to ferment in your gut. Taking a lactase supplement before eating dairy can prevent the bloating before it starts.
Alpha-galactosidase (the active ingredient in Beano) breaks down a type of non-absorbable fiber found in beans, root vegetables, and some dairy products. Your body doesn’t produce this enzyme at all, even if your digestion is perfectly healthy. Without it, that fiber reaches your intestines intact, where bacteria feed on it and produce gas. Taking it with your first bite of a high-fiber meal breaks the fiber down before it reaches the lower gut.
Timing matters with both of these. They need to be in your system before or during the meal, not after the bloating has already set in. One thing worth knowing: over-the-counter enzyme supplements aren’t regulated by the FDA, so the actual enzyme concentration can vary between brands. Johns Hopkins Medicine notes that dosage, ingredients, and side effects aren’t guaranteed with these products.
Probiotics for Recurring Bloating
If bloating is a regular part of your life rather than an occasional annoyance, probiotics may help over time. These aren’t a quick fix. They work by gradually shifting the balance of bacteria in your gut, and it can take several weeks to notice a difference.
Not all probiotic strains are equal for bloating. A systematic review published in The Lancet’s eClinicalMedicine found that specific single-strain probiotics showed measurable benefits for irritable bowel syndrome symptoms, including bloating. One of the better-studied strains is Bifidobacterium infantis 35624, which showed improvements in bloating scores across multiple trials at varying doses. Another strain, Bifidobacterium animalis DN-173010, also demonstrated reductions in bloating compared to placebo groups.
The challenge is that most probiotic products on store shelves contain different strains than the ones tested in clinical research. If you’re choosing a probiotic specifically for bloating, look for products that list the exact strain (not just the species) on the label, and check whether that strain has evidence behind it.
When Constipation Is the Real Problem
Bloating and constipation often travel together. If you haven’t had a bowel movement in a while, the backup itself creates pressure and fullness that no amount of gas relief will fix. In this case, getting things moving is the real solution.
Magnesium citrate is an osmotic laxative that works by pulling water into your intestines. The extra water softens stool and increases pressure, which prompts the muscles in your intestinal walls to push things along. It’s available over the counter as a liquid solution and typically produces results within a few hours. It’s meant for occasional use, not as a daily habit.
Fiber supplements can also help, but they require adequate water intake. Adding fiber without enough fluid can actually make bloating worse in the short term. If constipation-related bloating is a recurring issue, gradually increasing fiber through food (fruits, vegetables, whole grains) tends to work better than supplements alone because it trains your gut to handle larger volumes without producing excess gas.
Activated Charcoal: Proceed With Caution
Activated charcoal tablets are sometimes marketed for gas and bloating. The idea is that charcoal binds to gas-producing compounds in your gut. Some people find it helpful, but it comes with a significant downside: charcoal absorbs nearly everything in your digestive tract, including medications.
If you take any prescription drugs, hormonal birth control, supplements, or even herbal products, activated charcoal can reduce their effectiveness. Cleveland Clinic advises taking any other medications at least two hours before or after charcoal. The list of potential interactions is long and includes common medications for heart conditions, seizures, blood sugar management, and psychiatric conditions. For most people, simethicone or enzyme supplements are a safer first choice.
Simple Habits That Reduce Bloating
Beyond what you can take, how you eat plays a surprisingly large role. Eating quickly, talking while chewing, drinking through straws, and chewing gum all increase the amount of air you swallow, which contributes directly to that pressurized feeling. Slowing down at meals and eating smaller portions gives your digestive system time to process food without overwhelming it.
Carbonated drinks are another obvious but often overlooked source. Every sip introduces carbon dioxide into your stomach. If you’re already prone to bloating, switching to still water can make a noticeable difference within days. Salty foods also contribute by causing water retention, which produces a different kind of bloating, more of a puffiness than a gassy pressure. Cutting back on sodium-heavy processed foods helps with that type specifically.
Walking after a meal, even for just 10 to 15 minutes, stimulates gut motility and helps move gas through your system faster. It’s one of the simplest interventions and consistently one of the most effective.
Signs Your Bloating Needs Medical Attention
Most bloating is harmless and responds to the strategies above. But persistent or worsening bloating can occasionally signal something that needs a closer look. Cleveland Clinic recommends watching for bloating that gets progressively worse, lasts more than a week, is persistently painful, or comes with fever, vomiting, bleeding, unintentional weight loss, or signs of anemia. Any of those combinations warrants a visit to your healthcare provider to rule out conditions like small intestinal bacterial overgrowth, celiac disease, ovarian issues, or other digestive disorders that share bloating as a symptom.