Several things help with bloating, from simple habit changes to targeted supplements, depending on what’s causing it. Most bloating comes down to three issues: too much gas being produced in your gut, your body struggling to move that gas through efficiently, or your nervous system overreacting to normal amounts of gas. The fix that works best for you depends on which of these is driving the problem.
Why Bloating Happens in the First Place
Your gut bacteria ferment carbohydrates as part of normal digestion, and that process produces gas. When bacteria overgrow in the small intestine or you eat foods your body can’t fully break down, fermentation ramps up and stretches the intestinal tract. This is the most straightforward cause: too much gas, too fast.
But plenty of people who feel bloated aren’t actually producing extra gas. They have what’s called visceral hypersensitivity, meaning their gut nerves register normal gas levels as uncomfortable fullness or pressure. Their abdomen may not even be distended, yet the sensation is very real.
A third mechanism involves how your body physically handles gas clearance. Normally, your diaphragm and abdominal wall muscles coordinate to move gas along. In some people, that reflex misfires: the diaphragm contracts when it shouldn’t, and the abdominal muscles relax, letting the belly protrude. This explains why some people look visibly bloated even without excessive gas production.
Cut Down on Swallowed Air
Before looking at supplements or diet changes, it’s worth checking whether you’re simply swallowing too much air. This is called aerophagia, and it’s one of the easiest causes to fix. Chewing gum, sucking on hard candy, drinking through straws, and gulping carbonated beverages all force extra air into your stomach. Eating quickly or talking while you eat does the same thing. If your bloating tends to hit in the upper abdomen and comes with frequent burping, cutting these habits may be all you need.
Foods That Trigger Bloating
Certain carbohydrates are poorly absorbed in the small intestine and get fermented by bacteria in the colon, producing gas. These are collectively called FODMAPs, short for fermentable oligosaccharides, disaccharides, monosaccharides, and polyols. Common culprits include onions, garlic, wheat, beans, lentils, apples, pears, and many dairy products.
A low FODMAP elimination diet, developed at Monash University, temporarily removes these foods for two to six weeks, then reintroduces them one at a time. Research has found it reduces digestive symptoms in up to 86% of people. The goal isn’t to avoid these foods forever. It’s to identify which specific ones cause you problems so you can eat freely otherwise. Working with a dietitian helps, since the elimination phase is restrictive and easy to do incorrectly.
Peppermint Oil
Enteric-coated peppermint oil capsules relax the smooth muscle in your intestinal wall, which helps trapped gas move through and reduces the cramping that often accompanies bloating. The enteric coating matters because it prevents the oil from dissolving in your stomach (where it can cause heartburn) and delivers it to the intestines instead.
In a double-blind trial of people with irritable bowel syndrome, 75% of those taking peppermint oil capsules twice daily saw their overall symptom scores drop by more than half after four weeks, compared to 38% on placebo. The benefit persisted for at least a month after stopping. If your bloating comes alongside cramping or irregular bowel habits, peppermint oil is one of the better-studied options.
Probiotics Worth Trying
Not all probiotics help with bloating. Most broad-spectrum products haven’t been tested specifically for it. One strain with strong clinical evidence is Bifidobacterium infantis 35624, which significantly reduced bloating, gas, abdominal pain, and bowel dysfunction in a four-week trial of women with IBS. It outperformed placebo by more than 20% on a global symptom assessment. Interestingly, only one specific dose worked. A dose ten times higher actually failed, likely due to formulation problems, which underscores that more isn’t always better with probiotics. Look for this strain by name on the label rather than grabbing a generic blend.
Digestive Enzymes for Specific Foods
If beans, lentils, broccoli, cabbage, or root vegetables reliably make you bloated, the issue is likely a type of fiber your body can’t break down on its own. An enzyme called alpha-galactosidase (sold as Beano) breaks down this fiber before it reaches the colon, preventing the fermentation that produces gas. You take it with your first bite of the trigger food. More than 20% of the population has trouble digesting complex carbohydrates in beans and certain vegetables, so this is a common and underused fix.
For dairy-related bloating, a lactase enzyme supplement works on the same principle: it supplies the enzyme your body is short on, breaking down lactose before bacteria can ferment it. Both types of enzyme supplements are most effective when taken right as you start eating, not after symptoms appear.
Simethicone for Quick Relief
Simethicone (sold as Gas-X and similar products) works differently from everything above. It doesn’t prevent gas from forming. Instead, it breaks up gas bubbles already in your digestive tract, making them easier to pass. It’s useful for occasional relief when you’re already uncomfortable, but it won’t address the underlying cause if you’re bloated regularly. The typical dose is 40 to 125 mg taken after meals and at bedtime, up to 500 mg per day.
Movement and Meal Timing
A short walk after eating is one of the simplest ways to reduce bloating. Physical activity stimulates your intestines to move gas through more efficiently. Even 10 to 15 minutes of gentle walking helps. Regular exercise also improves overall gut motility over time, which reduces how often bloating occurs in the first place.
How you eat matters as much as what you eat. Large meals stretch the stomach and slow digestion, giving bacteria more time to ferment food and produce gas. Eating smaller, more frequent meals keeps the digestive system from getting overwhelmed. Eating slowly and chewing thoroughly gives your stomach a head start on breaking food down before it reaches the intestines.
When Bloating Signals Something More Serious
Occasional bloating after a big meal or a high-fiber dish is normal. Persistent bloating that gets progressively worse, lasts more than a week, or comes with pain deserves medical attention. Red flags include unintentional weight loss, fever, vomiting, rectal bleeding, and signs of anemia like unusual fatigue or pale skin. These can point to conditions like celiac disease, ovarian cancer, or inflammatory bowel disease that require specific diagnosis and treatment rather than dietary tinkering.