Supplements for Bloating and Gas: What Actually Works (and What Doesn’t)

You finish a meal feeling fine, and an hour later your waistband is tight, your stomach feels like a balloon and you’re quietly hoping no one notices the gas. Bloating is one of the most common digestive complaints, and it has spawned a whole shelf of products promising a flatter stomach. So which supplements for bloating and gas actually help, and which are a waste of money?

The honest answer is that it depends on why you’re bloated. This guide explains the main causes, matches each one to the supplement with the best evidence, and flags the popular options that research doesn’t support.

Why You Get Bloated: Match the Cause First

Bloating is the feeling of pressure or fullness, while distention is the visible swelling of your belly. They often come together but have different causes, and gastroenterologists note that the evidence for most treatments is limited (Moshiree et al., 2023). The most common triggers are:

• Fermentable carbs. Beans, onions, garlic, wheat, some fruits and sugar alcohols are fermented by gut bacteria, producing gas.
• Lactose intolerance. Undigested milk sugar reaches the colon and ferments.
• Constipation. Slow transit traps gas and stool, making you feel full and swollen.
• Swallowed air. Eating fast, chewing gum, fizzy drinks and drinking through straws all add air.
• A sensitive gut. In IBS, normal amounts of gas can feel painful because the gut’s nerves are more sensitive.

If you’re not sure what’s behind your symptoms, our guide to the best supplements for gut health covers the bigger picture of digestion and your microbiome.

When bloating needs a doctor

See a doctor rather than reaching for supplements if bloating is new and persistent (especially after age 45), or comes with unexplained weight loss, blood in your stool, vomiting, a change in bowel habits, difficulty eating or a feeling of fullness after very small meals. Persistent bloating in women, particularly with pelvic pain or needing to urinate often, should also be checked. Doctors may test for celiac disease, which commonly causes bloating (Moshiree et al., 2023).

The Best Supplements for Bloating and Gas

1. Peppermint oil: best for IBS bloating and cramps

Peppermint oil relaxes the smooth muscle of the gut, easing spasms that trap gas. A meta-analysis of 12 randomized trials with 835 people found that enteric-coated peppermint oil more than doubled the chance of overall IBS symptom relief compared with placebo, and significantly reduced abdominal pain (Alammar et al., 2019). Choose enteric-coated capsules so the oil is released in the intestine rather than the stomach. Skip it if you get heartburn, because it can relax the valve at the top of the stomach and make reflux worse.

2. Digestive enzymes: only when they match the food

Searches for “do enzymes help with bloating” are hugely popular, and the answer is: specific enzymes help specific problems.

• Alpha-galactosidase (the enzyme in Beano) breaks down the carbs in beans, lentils and cruciferous vegetables. In a double-blind crossover trial, it reduced gas after a bean chili meal, although it didn’t reduce bloating or pain (Ganiats et al., 1994). Take it with the first bite.
• Lactase helps if you’re lactose intolerant. If dairy reliably makes you bloated, lactase tablets or lactose-free milk are a simple fix.
• Broad “digestive enzyme blends” have little good evidence for general bloating in people without a diagnosed enzyme problem.

3. Soluble fiber: for bloating with constipation

If you’re bloated because you’re backed up, getting things moving often relieves it. The American College of Gastroenterology recommends soluble fiber like psyllium for IBS, while insoluble fiber like wheat bran can make bloating worse (Lacy et al., 2021). The catch: fiber itself can cause gas at first. Start with a small dose, increase slowly over two to three weeks and drink plenty of water.

4. Ginger: helps your stomach empty, but the evidence is thin

Ginger is a traditional remedy for indigestion. In a small randomized trial of people with functional dyspepsia (upper-stomach fullness and discomfort), 1.2 g of ginger made the stomach empty faster than placebo, but it didn’t measurably change symptoms (Hu et al., 2011). It’s safe for most people and may help if you feel overly full after meals, but don’t expect dramatic results.

5. Simethicone and activated charcoal: limited evidence

Simethicone breaks up gas bubbles and is widely available, but trials of it for bloating have been small with mixed results. Activated charcoal also has weak evidence, and it can bind to medications and nutrients, so take it well apart from any medicines. Neither is harmful for occasional use, but neither is a reliable fix.

What About Probiotics for Bloating?

Probiotics are the most heavily marketed bloating remedy, so this may surprise you: the American Gastroenterological Association’s 2023 expert review specifically advises that probiotics should not be used to treat abdominal bloating and distention (Moshiree et al., 2023). A large meta-analysis of 53 probiotic trials in IBS found that some strains and combinations may help overall symptoms, but it wasn’t possible to say which ones reliably work (Ford et al., 2018). Some people also notice more gas in the first week or two of taking a probiotic.

That doesn’t mean probiotics are useless. They have good evidence in other situations, such as during antibiotics. For a full, honest look at what they can and can’t do, read do probiotic supplements work?

At a Glance: Bloating Supplements Compared

Supplement	Best for	Evidence
Peppermint oil (enteric-coated)	IBS bloating, cramping, pain	Good (meta-analysis)
Alpha-galactosidase	Gas from beans and vegetables	Moderate for gas; not bloating
Lactase	Bloating from dairy	Good if lactose intolerant
Soluble fiber (psyllium)	Bloating with constipation	Good (guideline-backed)
Ginger	Upper-stomach fullness	Early, small studies
Simethicone, charcoal	Occasional gas	Weak, mixed
Probiotics	Not recommended for bloating	Advised against (AGA 2023)

What Helps Bloating Fast (Without Supplements)

• Go for a walk. Gentle movement helps gas move through your gut.
• Slow down at meals. Chew well, put your fork down between bites and skip gum, straws and fizzy drinks.
• Try a short low-FODMAP trial. The ACG recommends a limited trial for IBS, ideally guided by a dietitian, then reintroducing foods one at a time to find your triggers (Lacy et al., 2021).
• Watch sugar alcohols. Sorbitol, xylitol and maltitol in “sugar-free” products are common hidden triggers.
• Don’t eat too close to bed. See how long before bed you should stop eating.
• Manage stress. Stress makes the gut more sensitive through the gut-brain axis. Learn more in the gut-brain connection and our guide to the best supplements for stress.

Frequently Asked Questions

What supplement helps with bloating and gas?

Enteric-coated peppermint oil has the best evidence for IBS-type bloating and cramping. For gas from specific foods, alpha-galactosidase (for beans and vegetables) or lactase (for dairy) can help. Soluble fiber helps if you’re bloated because of constipation.

Do digestive enzymes help with bloating?

Only when they match the problem. Lactase helps people who are lactose intolerant, and alpha-galactosidase reduces gas from beans. General enzyme blends have little evidence for people without a known enzyme deficiency.

What vitamin helps with bloating and gas?

No vitamin has good evidence for relieving bloating. Low vitamin D has been linked with IBS, but correcting a deficiency is about overall health, not a bloating cure. Focus on the cause instead.

Can supplements cause bloating and gas?

Yes. Fiber supplements, probiotics, magnesium, iron and products sweetened with sugar alcohols commonly cause gas or bloating, especially when you first start them. Starting at a low dose and building up slowly usually helps.

Do probiotics help with bloating?

The American Gastroenterological Association advises against using probiotics to treat bloating, because the evidence doesn’t show a reliable benefit. Some strains may help overall IBS symptoms, but results are inconsistent.

What helps bloating fast?

A 10 to 15 minute walk, a warm drink such as peppermint or ginger tea, gentle belly massage and loosening tight clothing can ease bloating within an hour. Enteric-coated peppermint oil can also work within hours for some people.

The Bottom Line

The best supplements for bloating and gas are the ones that match the cause. Peppermint oil for IBS-type cramping and bloating, lactase or alpha-galactosidase for food-triggered gas, and soluble fiber when constipation is the problem. Probiotics aren’t recommended for bloating, and simple habits like eating slowly and identifying trigger foods often work better than anything in a capsule. If your bloating is new, persistent or comes with warning signs, see a doctor first.

References

1. Moshiree B, Drossman D, Shaukat A. AGA clinical practice update on evaluation and management of belching, abdominal bloating, and distention: expert review. Gastroenterology. 2023;165(3):791-800.e3. doi:10.1053/j.gastro.2023.04.039
2. Alammar N, et al. The impact of peppermint oil on the irritable bowel syndrome: a meta-analysis of the pooled clinical data. BMC Complement Altern Med. 2019;19(1):21. doi:10.1186/s12906-018-2409-0
3. Ganiats TG, et al. Does Beano prevent gas? A double-blind crossover study of oral alpha-galactosidase to treat dietary oligosaccharide intolerance. J Fam Pract. 1994;39(5):441-445. PMID:7964541
4. Lacy BE, et al. ACG clinical guideline: management of irritable bowel syndrome. Am J Gastroenterol. 2021;116(1):17-44. doi:10.14309/ajg.0000000000001036
5. Hu ML, et al. Effect of ginger on gastric motility and symptoms of functional dyspepsia. World J Gastroenterol. 2011;17(1):105-110. doi:10.3748/wjg.v17.i1.105
6. Ford AC, et al. Systematic review with meta-analysis: the efficacy of prebiotics, probiotics, synbiotics and antibiotics in irritable bowel syndrome. Aliment Pharmacol Ther. 2018;48(10):1044-1060. doi:10.1111/apt.15001