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Reduce bloating: a glass of water with a lemon slice, a bowl of cooked oats with banana, a sprig of fresh mint and a paper food diary on a light wooden table

Gut & Digestive Health

Reduce Bloating

A bloated belly can feel tight, full and uncomfortable even when you have eaten very little, and it is one of the most common digestive complaints. For most people it can be eased by understanding what sets it off and by changing a few everyday habits, while bloating that is frequent, persistent or comes with warning signs needs a doctor.

General information, not medical advice. Last updated October 31, 2026. Written by the AlternativeMed editorial team. Not medically reviewed.

Start here

  • Slow down at meals: eat smaller, more regular portions, chew well and avoid gulping air, fizzy drinks and chewing gum for a week to see what changes.
  • Move a little every day. A short walk, especially after meals, helps gas move through the gut.
  • Keep a simple food and symptom diary for two weeks, noting what you ate, when the bloating came, and your bowel habits, so you and a health professional can spot patterns.

Be careful with

  • Bloating that does not go away, keeps coming back, or is new for you after age 50 should be checked by a doctor rather than treated at home. Persistent bloating can occasionally be a sign of something more serious, such as ovarian cancer.
  • Do not cut out whole food groups (such as gluten, dairy or all fibre) for long periods on your own. Restrictive diets can leave you short of nutrients and can hide a condition such as celiac disease, which needs testing while you are still eating gluten.
  • 'Natural' does not mean risk-free. Herbal teas, peppermint oil and probiotic products can still cause side effects or interact with medicines. If you are pregnant, breastfeeding or take regular medicines, check with a pharmacist or doctor first.
  • Do not stop or change a prescribed medicine because you think it is causing bloating. Talk to your prescriber.

Get help when

  • Bloating together with blood in your stool, black stools, vomiting blood, or unexplained weight loss. See a doctor promptly.
  • Bloating that is frequent, does not settle after a few weeks of simple changes, or keeps getting worse.
  • Bloating with persistent vomiting, a swollen or hard belly, a lump in the belly, a high temperature, or being unable to pass stool or wind. Get urgent medical advice.
  • Severe or sudden stomach pain, pain that wakes you at night, trouble swallowing, or bloating with a burning feeling in the chest that keeps returning.
  • Persistent or increasing bloating with feeling full quickly, pelvic pain or needing to pass urine more often, especially in women over 50. The NHS lists persistent bloating as a possible sign of ovarian cancer, so do not wait.
  • Changes in your bowel habit that last more than a few weeks, anaemia, or a family history of bowel cancer or inflammatory bowel disease.
  • Call emergency services if bloating comes with a very sudden severe stomach ache, vomiting blood or vomit that looks like coffee grounds, or severe difficulty breathing.

About Reduce Bloating

What this goal means

This goal is about the feeling of a full, tight or swollen belly, and about habits that make it less frequent and less uncomfortable. Doctors describe bloating as a feeling of fullness or trapped gas. Distension is when the belly measurably gets bigger. The two often occur together but not always: the US National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) says only about half of people with bloating also have visible distension.

This page covers bloating and fullness as a symptom. If your main concern is passing wind or belching, see the separate goal on excess gas. If your concern is how you feel after eating, see feeling more comfortable after meals.

1,2

Common experiences

People describe bloating as pressure, tightness, a rumbling or gurgling belly, trousers that feel tighter by the evening, or a belly that looks bigger than in the morning. It often builds through the day and eases overnight. It may come with wind, mild discomfort or cramping, and some people feel bloated around their period.

3

Contributing factors

The NHS names gas as the most common reason: gas from certain foods and fizzy drinks, or from swallowing air while eating. The NIDDK explains that gut bacteria make gas when they break down carbohydrates that the small intestine has not fully digested.

Research also points to a gut that is more sensitive or moves things along differently. In a CT-scan study of 56 people with bloating, severe bloating episodes were linked to a change in how the diaphragm and belly wall move rather than only to a large amount of extra gas, which helps explain why bloating can occur even when little gas is present. Experts also list food intolerances, a past gut infection that disturbed the gut bacteria, slowed gut transit and constipation as contributors.

3,1,4,2

Relevant conditions

Bloating is a common symptom of irritable bowel syndrome (IBS), constipation, lactose and other food intolerances, and celiac disease. These are medical diagnoses that a doctor makes; this page does not diagnose them. Bloating can also be related to periods, and rarely to more serious conditions, which is why persistent bloating needs a check.

3,2

Realistic expectations

Some bloating is normal, especially after a large meal or a high-fibre day. Aim for less frequent and less severe episodes rather than a flat belly all day; the belly naturally expands a little as you eat and through the day. Specialists note that no single treatment works for everyone, and finding the cause and setting realistic expectations is part of treatment. Give each change one to two weeks before judging it, and change one thing at a time.

2,3

Who this applies to

Almost everyone is bloated at times. This page is for adults with occasional or recurring bloating and no warning signs. Children, pregnant women and older adults can use the general habits, but should ask a doctor about any persistent symptoms or about supplements. Bloating in pregnancy is common but should still be mentioned to your midwife or doctor if it is severe or comes with pain.

3

Related conditions and symptoms

Bloating and Gas → Irritable bowel syndrome → Constipation → Lactose intolerance and food intolerances → Celiac disease → Inflammatory bowel disease →

A manageable starting plan

An educational starting point, not a personal prescription. Adjust it to your own situation and any advice from your clinician.

Your first actions

  • Check the warning signs on this page first. If you have any, book a medical visit before trying home changes.
  • Week 1: slow down at meals, use smaller portions, cut back fizzy drinks and gum, and take a short walk after meals.
  • Weeks 1 to 2: keep a food and symptom diary, and change one thing at a time.

Optional additions

  • If constipation is part of the picture, raise soluble fibre slowly and drink enough fluid.
  • Try a week of peppermint tea after meals for comfort, or ask a pharmacist about enteric-coated peppermint oil if you have IBS-type symptoms.
  • Try smaller portions of beans, onion and cabbage, or lactose-free dairy, if your diary points to them.
  • Add five minutes of slow breathing before meals if stress seems to be a trigger.

What to track

  • Daily bloating level (0 to 10) and when it peaks
  • Meals, portion size, fizzy drinks and gum
  • Bowel movements (how often, how easy)
  • Walks, sleep, stress and your cycle if relevant
  • Any warning signs, such as blood in stool, weight loss or vomiting

When to reassess

Give each change one to two weeks. If bloating is no better after about three to four weeks of sensible changes, or sooner if it is getting worse, see a doctor and bring your diary.

When to seek professional support

  • Talk to a pharmacist about constipation or over-the-counter options.
  • See a doctor for persistent bloating or any warning sign, and ask about a dietitian referral if food triggers are likely.
  • Read the full guide to digestive warning signs before trying elimination diets.

What helps

Ordered by how well the research supports each step. Evidence strength is shown on every card; precautions sit next to the advice.

Start here

Eat more slowly, in smaller and more regular meals

Low certainty

Addresses: Less swallowed air and less pressure from one very large meal

Why it may help: The NHS advises eating smaller, more frequent meals instead of large ones, chewing with your mouth closed to avoid swallowing air, and not slouching when eating. The NIDDK lists eating or drinking too fast, chewing gum and sucking hard candy among the ways people swallow more air.

How to apply it: Put your fork down between mouthfuls, chew well, sit upright, and stop when comfortably satisfied. Try three modest meals plus a snack rather than one or two large meals.

Who it may suit: Most adults with bloating, especially if it is worse after big or fast meals.

Precautions: Little formal trial evidence on meal size or speed for bloating specifically; this is common practical advice from health agencies. Older adults or anyone losing weight without trying should not cut back food without medical advice.

3,1

Gentle movement, especially a walk after meals

Low certainty

Addresses: Helps gas move through the gut and may ease the full feeling

Why it may help: The NHS says regular exercise can help prevent bloating and also helps when you are already bloated. In a small crossover study of eight people with bloating, gentle pedalling exercise reduced gas retention (24% retained during exercise versus 45% at rest) and reduced symptoms.

How to apply it: Take a 10 to 20 minute easy walk after your largest meal, and aim for regular activity most days. Stop if it brings on pain.

Who it may suit: Most adults. Gentle options include walking, light cycling and stretching.

Precautions: The study was very small and used a lab gas infusion, so it shows a plausible mechanism rather than proof for everyday bloating. Check with a doctor before starting exercise if you have heart or other health conditions.

3,5

Yoga →

A food and symptom diary for two weeks

Low certainty

Addresses: Finds your own triggers, and gives a doctor or dietitian something to work with

Why it may help: Experts say treating bloating starts with identifying the likely cause and severity. The NHS notes a GP may refer you to a dietitian if general diet tips, such as cutting down on trigger foods, are not helping. A diary is the simplest way to see which foods, meal sizes, stress or bowel changes line up with your bloating.

How to apply it: Note meals, drinks, timing and size, bloating level (0 to 10), wind, bowel movements, sleep, stress and your cycle if relevant. Review after two weeks and change one thing at a time.

Who it may suit: Anyone with recurring bloating.

Precautions: Stop if the diary becomes a source of worry or leads you to eat very restrictively. If you have a history of an eating disorder, do not start food tracking without professional support.

2,3

Understand Your Food Triggers →

Look at fizzy drinks, chewing gum and big gas-producing foods first

Moderate certainty

Addresses: Cuts both swallowed air and the gas made by gut bacteria

Why it may help: The NHS lists fizzy drinks, some vegetables such as cabbage, beans and lentils, and swallowed air as common causes. The NIDDK says undigested carbohydrates are broken down by gut bacteria, producing gas.

How to apply it: Swap fizzy drinks for still water or herbal tea for a week. Try smaller portions of beans, lentils, onion and cabbage rather than removing them forever, since they also carry fibre and other benefits.

Who it may suit: People whose bloating follows certain foods or drinks.

Precautions: Do not drop all vegetables, beans and wholegrains without guidance; they are healthy foods and a dietitian can help you adjust portions.

3,1

Bloating and Gas →

Additional options

Add fibre gradually, favouring soluble fibre such as oats

Low certainty

Addresses: Can ease constipation-related bloating without a sudden gas increase

Why it may help: The NHS suggests foods high in soluble fibre, such as oats or linseed, if constipation is part of the picture. A review of fibre in functional gut disorders found soluble supplements such as ispaghula (psyllium) best supported, and warned that even carefully used fibre can worsen bloating, gas, constipation or diarrhoea. The NIDDK says raising fibre slowly, by 2 to 3 grams a day, may help prevent gas and bloating.

How to apply it: Increase fibre in small steps over weeks, drink enough fluid alongside it, and prefer oats, peeled fruit and cooked vegetables to a sudden jump in raw bran or high-fibre supplements.

Who it may suit: People who feel bloated and also constipated.

Precautions: Too much fibre too fast can make bloating worse. Fibre supplements should be taken with enough fluid and spaced apart from some medicines; ask a pharmacist. Do not use fibre if you cannot pass stool or wind or have severe pain.

3,6,7

Increase Fiber Comfortably → Ease Occasional Constipation → Fibre supplements compared →

Gentle belly massage, and a warm, relaxed posture

Not enough evidence

Addresses: May help release trapped wind and relax the belly

Why it may help: The NHS suggests massaging the stomach from right to left to release trapped wind. We have not cited controlled trials of belly massage for bloating, so this rests on health-service guidance and comfort rather than trial evidence.

How to apply it: Lying down, use light pressure with flat fingers in slow circles following the path of the colon (up the right side, across, and down the left). Stop if it hurts.

Who it may suit: Healthy adults with mild, trapped-wind bloating.

Precautions: Do not massage a swollen, hard or painful belly, if you have a hernia, recent abdominal surgery, a lump, are pregnant (without advice), or have bloating with fever or vomiting. See a doctor in those cases.

3

Massage →

Slow, relaxed breathing and stress-easing habits

Low certainty

Addresses: May lower gut sensitivity and tension that magnify bloating

Why it may help: Bloating and other functional gut symptoms are linked to how the brain and gut communicate, and stress can make them feel worse. A network meta-analysis of 41 trials of psychological therapies in IBS found some (cognitive behavioural therapy and gut-directed hypnotherapy) improved symptoms. That evidence is in IBS, not bloating alone, so relaxation here is a reasonable low-risk habit rather than a proven bloating treatment.

How to apply it: Try five minutes of slow breathing before meals, and sit down to eat in a calm space instead of eating on the move.

Who it may suit: People whose bloating flares with stress or rushed meals.

Precautions: If anxiety is significant or ongoing, speak to a doctor. Breathing practices can occasionally cause lightheadedness; stop if so.

8,1

Breathwork → Manage Stress-Related Digestive Discomfort →

Still being studied

A short, supervised low-FODMAP trial (in IBS)

Moderate certainty

Addresses: Reduced bloating, pain and wind in people with IBS

Why it may help: In a randomised crossover trial of 30 people with IBS, 21 days on a low-FODMAP diet gave lower overall gut symptom scores than a typical Australian diet, with bloating, pain and wind also reduced. A later trial in 75 people found it worked about as well as traditional IBS dietary advice, and a 92-person US trial found no significant difference in overall relief against modified NICE advice, though pain improved more. The American College of Gastroenterology recommends a limited trial of a low-FODMAP diet in IBS.

How to apply it: The usual approach is a few weeks of restricted high-FODMAP foods followed by a planned reintroduction, ideally guided by a dietitian. See our full guide.

Who it may suit: Adults with IBS or a doctor-confirmed pattern of bloating who have not improved with simpler changes.

Precautions: Not meant to be followed long term. It can cut fibre, calcium and other nutrients and may lower beneficial gut bacteria. Get tested for celiac disease and check for warning signs first. Avoid if you have, or are at risk of, an eating disorder, and do not start it without professional guidance if you are pregnant, a child or an older adult.

9,10,11,12

The low-FODMAP diet → Irritable bowel syndrome →

Probiotics

Low certainty

Addresses: May reduce bloating and wind for some people with IBS; strain matters

Why it may help: A meta-analysis of 43 randomised trials in IBS found probiotics beneficial for overall symptoms, abdominal pain, bloating and flatulence scores, but which strains work best was unclear. A later review of 53 trials said particular combinations or strains appeared to help but that definitive conclusions could not be drawn. Evidence for bloating in people without IBS is thin.

How to apply it: If you try one, choose a single product, follow its label, and give it about four weeks before judging; stop if it does not help.

Who it may suit: Adults with IBS-type bloating who want to try an over-the-counter option.

Precautions: Some people notice extra gas or bloating at first. People who are immunocompromised, critically ill or have a central venous catheter should only use them under medical advice. Products vary in strains and quality.

13,14

Probiotics and Prebiotics for Gut Health → Lactobacillus and Bifidobacterium probiotics →

Gut-directed psychological approaches (CBT, gut-directed hypnotherapy)

Moderate certainty

Addresses: Improved overall gut symptoms in IBS, which commonly includes bloating

Why it may help: A network meta-analysis of 41 trials (4,072 people) found self-administered or minimal-contact CBT, face-to-face CBT and gut-directed hypnotherapy reduced the chance of remaining symptomatic after therapy. The American College of Gastroenterology suggests gut-directed psychotherapy for global IBS symptoms. Bloating on its own has not been studied as much.

How to apply it: Ask your doctor about a referral to a therapist with experience in gut-related problems.

Who it may suit: Adults with IBS or long-standing gut symptoms linked to stress or worry.

Precautions: Benefit shown for overall IBS symptoms; effect on bloating alone is less clear. Availability varies.

8,12

Meditation →

Food & nutrition

Eating patterns that tend to help

There is no single bloating diet. Health agencies suggest regular, smaller meals, eating at a relaxed pace, plenty of water, and soluble-fibre foods such as oats or linseed if you are also constipated. Keep drinks like fizzy water, alcohol and strong coffee to a minimum if they set off symptoms.

If constipation drives your bloating, the Increase Fiber Comfortably and Ease Occasional Constipation goals cover that in more detail.

  • Smaller, regular meals instead of very large ones
  • Oats, peeled fruit and cooked vegetables are often easier on a sensitive gut than raw bran or very large salads
  • Still water through the day
  • Herbal teas such as peppermint or ginger tea, as a comfort drink (see Remedies)
3,7

Foods that commonly trigger bloating

The NHS names some vegetables and fizzy drinks as common causes, with cabbage, beans and lentils as examples. The NIDDK adds foods with fermentable carbohydrates such as apples, pears, garlic, onion, milk products, wheat and rye, honey and sweeteners ending in -ol. You may react to only a few of these. Use your diary and test one change at a time rather than removing everything.

  • Beans, lentils, cabbage, onion and garlic (try smaller portions)
  • Apples, pears and some other fruit or fruit juice in large amounts
  • Milk and soft dairy if you are lactose intolerant
  • Sugar-free gum, sweets and 'diet' products with sweeteners ending in -ol
  • Fizzy drinks and alcohol
3,7,1

When to get dietitian help

If simple changes do not help, the NHS says a GP may refer you to a dietitian. A registered dietitian can run a low-FODMAP trial properly, including reintroduction, and make sure your diet stays balanced. Celiac disease should be tested for before you cut gluten.

3,12

Remedies & supplements

Traditional use, laboratory findings and human trials are kept apart. "Natural" does not mean safe.

Peppermint oil (enteric-coated capsules)

Moderate certainty

Studied form and route: Enteric-coated capsules, taken under label or professional guidance

Intended outcome: Overall IBS symptoms and abdominal pain; effects on bloating alone are less clear

Human evidence: A meta-analysis of 12 randomised trials (835 people with IBS) found peppermint oil beat placebo for global symptom improvement (risk ratio 2.39 across seven trials) and abdominal pain (risk ratio 1.78 across six trials), with no significant difference in reported side effects.

Traditional use: Peppermint has long been used as a digestive soothing herb.

Laboratory findings: Not assessed here; the human trials above are the basis for the rating.

Limits: The evidence is in people with IBS, not people with bloating from other causes. Trials were often small and short, and products differ in strength and coating.

Interactions and precautions: Can cause heartburn, reflux and a burning feeling when passing stool. Not suitable for people with significant reflux or hiatus hernia, and it can interact with medicines. Ask a doctor or pharmacist before giving it to children, and before using it in pregnancy or while breastfeeding. Do not use undiluted oil by mouth.

15,12

Peppermint → Peppermint tea →

Probiotics

Low certainty

Studied form and route: Capsules, powders or fermented foods containing live bacteria

Intended outcome: Possible reduction of bloating and wind in IBS

Human evidence: A meta-analysis of 43 trials found probiotics improved global IBS symptoms, pain, bloating and flatulence scores. A later meta-analysis of 53 trials found particular strains or combinations may help but could not name a definitive best choice.

Traditional use: Fermented foods such as yoghurt and kefir have been eaten for generations; trial evidence concerns specific strains.

Laboratory findings: Not assessed here; the trial reviews above are the basis for the rating.

Limits: Which strain, how much and for how long remain unclear. Quality varies between products.

Interactions and precautions: Some people notice extra gas or bloating at first. Avoid or get medical advice if immunocompromised, seriously ill, or with a central line.

13,14

Probiotics and Prebiotics for Gut Health → Lactobacillus and Bifidobacterium probiotics →

Psyllium (ispaghula) fibre

Low certainty

Studied form and route: Soluble fibre husk or powder, taken with plenty of water

Intended outcome: Softer, easier stools if constipation contributes to bloating; may help IBS symptoms

Human evidence: A review of fibre in functional gut disorders concluded that a soluble supplement such as psyllium is best supported when fibre is used, but warned that even carefully used fibre can make bloating, gas, constipation or diarrhoea worse.

Traditional use: Seed husks have long been used as a gentle bulk laxative.

Laboratory findings: Not assessed here; the review above is the basis for the rating.

Limits: Evidence is mainly for constipation and IBS; there is limited evidence for bloating on its own, and some people feel more bloated at first.

Interactions and precautions: Take with enough water, start low and increase slowly. Choking or blockage risk if taken with too little fluid or with swallowing problems or bowel narrowing. It can reduce absorption of some medicines, so ask a pharmacist about timing.

6,7

Psyllium → Fibre supplements compared →

Ginger

Very low certainty

Studied form and route: Fresh ginger, tea or capsules

Intended outcome: Faster stomach emptying; no proven effect on bloating itself

Human evidence: In a small double-blind crossover study of 11 people with functional dyspepsia, ginger speeded gastric emptying and stomach contractions but did not change gut symptoms or hormone levels.

Traditional use: Widely used traditionally for upset stomach and wind.

Laboratory findings: Not assessed here; the small human study above is the only source cited.

Limits: Very small study in a different condition; no reliable trials showing ginger reduces bloating.

Interactions and precautions: Can cause heartburn or mild stomach upset. High amounts may add to the effect of blood-thinning medicines; ask a pharmacist. Check with a doctor in pregnancy.

16

Ginger → Ginger tea →

Fennel, caraway and chamomile teas

Not enough evidence

Studied form and route: Herbal teas or seeds after meals

Intended outcome: Comfort and a calming ritual; bloating benefit not proven

Human evidence: We have not cited human trials in people with bloating for these herbs, so we do not rate them as treatments.

Traditional use: Fennel, caraway and chamomile have long been used in many cultures after meals to ease wind and fullness.

Laboratory findings: Not assessed here.

Limits: Mostly traditional use; no trials cited on this page.

Interactions and precautions: Chamomile can cause allergic reactions in people sensitive to the daisy family. Fennel and caraway seeds should be used cautiously in pregnancy and with some medicines; ask a pharmacist. A warm drink can feel soothing but a sweetened or fizzy 'digestive' drink may add to bloating.

Fennel → Caraway → Chamomile →

Therapies & care

Established professional care for bloating depends on the cause. A doctor can check for constipation, food intolerance, celiac disease, IBS and other conditions, and may suggest dietary changes, psychological approaches for gut symptoms, or other treatment. Pharmacists can advise on over-the-counter options. Always keep taking prescribed medicines unless your prescriber tells you to change them.

Dietitian-guided diet review (including a low-FODMAP trial)

Moderate certainty

Nutrition care A registered dietitian can review what you eat, check for triggers, run a time-limited low-FODMAP trial with reintroduction, and keep the diet balanced. Guidelines recommend a limited trial for IBS.

Who it may suit: Adults with recurring bloating that has not responded to simple changes, or with IBS.

Precautions: Get checked for celiac disease and red-flag symptoms first. Avoid in anyone with an eating disorder history unless the team knows.

12,9,10,3

The low-FODMAP diet →

Gut-directed psychological therapy

Moderate certainty

Psychological therapy Cognitive behavioural therapy and gut-directed hypnotherapy have been studied in IBS and improved overall gut symptoms. They work on the gut-brain connection rather than on the gut itself.

Who it may suit: Adults with IBS or persistent gut symptoms where stress or worry plays a part.

Precautions: Effects are shown for overall IBS symptoms. Access varies by area.

8,12

Irritable bowel syndrome →

Medical assessment and tests

Low certainty

Medical care A doctor can look at bowel habit, check for celiac disease or inflammatory bowel disease where relevant, and review medicines that may cause bloating. The NHS says a GP may refer you to a specialist for tests if the cause is unclear.

Who it may suit: Anyone with persistent, worsening or red-flag bloating.

Precautions: Do not delay assessment if you have warning signs.

3,12

When to get help for digestive symptoms → Inflammatory bowel disease →

Yoga and gentle movement

Not enough evidence

Movement therapy Gentle activity is advised for bloating by the NHS. Gentle twists or knees-to-chest poses are often used to ease trapped wind, but we have not cited trial evidence for yoga for bloating specifically.

Who it may suit: Most adults who enjoy gentle movement.

Precautions: Avoid deep twists or pressure on a painful or swollen belly, in late pregnancy or after abdominal surgery.

3

Yoga →

What to avoid

Habits, products and claims that can get in the way. Never stop a prescribed medicine without talking to the professional who prescribed it.

Risks that apply to most people

Fizzy drinks, chewing gum and sucking hard sweets

Moderate certainty

Why: They increase the air you swallow. The NIDDK lists carbonated drinks, gum and hard candy as sources of swallowed air, and the NHS advises against lots of fizzy drinks.

Who it applies to: Anyone who feels bloated after drinks or while chewing gum.

Try instead: Choose still water, plain or herbal tea, or flat drinks, and have sweets only now and then.

1,3

Large meals late at night, eaten while slouching or in a rush

Low certainty

Why: The NHS advises against large late-night meals and slouching when eating. Large portions and fast eating also mean more swallowed air.

Who it applies to: People whose bloating builds through the evening.

Try instead: Have your biggest meal earlier, sit upright, and finish eating a couple of hours before lying down.

3

Personal triggers to check

High-FODMAP and gas-producing foods in large amounts (for you, if they are triggers)

Moderate certainty

Why: The NIDDK lists foods that can contain fermentable carbohydrates, such as apples, pears, garlic, onion, beans, lentils, cabbage, milk products, wheat and rye, honey and sweeteners ending in -ol. Gut bacteria ferment these, producing gas. Not everyone reacts, which is why a diary helps.

Who it applies to: People with IBS or a sensitive gut. Many people tolerate most of these foods well.

Try instead: Reduce the specific foods your diary points to, try smaller portions, and avoid cutting everything at once. A dietitian can guide a structured trial.

7,3,9

The low-FODMAP diet →

Milk and dairy, if you are lactose intolerant

Moderate certainty

Why: People who cannot fully digest lactose can get abdominal pain, bloating and diarrhoea after dairy. The likelihood depends on how much lactose is eaten, how much lactase the body makes and the gut microbiome, and people with IBS are more likely to feel symptoms.

Who it applies to: Those whose bloating follows milk, soft cheese, ice cream or yoghurt. Lactose is just one of several poorly absorbed carbohydrates, so cutting it out gives modest benefit for many.

Try instead: Test smaller portions or lactose-free versions, and keep calcium intake up from other foods. Speak to a doctor or dietitian if you suspect intolerance.

17

Lactose intolerance and food intolerances →

Sugar-free sweeteners ending in -ol (sorbitol, mannitol, xylitol, maltitol)

Low certainty

Why: The NIDDK includes these sweeteners, found in sugar-free sweets, gum and some 'diabetic' foods, among the FODMAP-containing items that can trigger IBS symptoms.

Who it applies to: People who chew sugar-free gum or eat many 'sugar-free' products.

Try instead: Check ingredient lists for words ending in -ol and see whether cutting back helps.

7

Products that need caution

Sudden large amounts of fibre bars, bran or fibre supplements

Moderate certainty

Why: Fibre helps many people, but fermentation produces gas. A review of fibre in functional gut disorders found it can worsen bloating, gas, constipation or diarrhoea, and the NIDDK warns that too much fibre at once causes gas.

Who it applies to: People who start a high-fibre diet or supplement overnight.

Try instead: Add fibre in small steps, drink fluids with it, and ask a pharmacist about gentler soluble options.

6,7

Fibre supplements compared →

Frequent or long-term use of laxatives or anti-gas products without advice

Low certainty

Why: Ongoing bloating is a reason to find the cause rather than to keep self-treating. The NHS says a pharmacist can advise on laxatives for constipation and anti-gas medicines, but bloating that keeps coming back or does not settle needs a GP visit.

Who it applies to: Anyone using these products regularly.

Try instead: Use them short term for a clear reason, read the label, and book a visit if you still need them after a couple of weeks.

3

Unsupported claims

'Detox', 'gut cleanse' and 'flat belly' teas, powders and cleanses

Not enough evidence

Why: The causes of bloating differ from person to person, and specialist reviews describe treatment as finding the cause rather than using one product. We have not cited any human trials showing that detox or cleanse products help, and many contain laxative herbs that can cause cramps, diarrhoea and dehydration.

Who it applies to: Social media, supplement labels and 'gut reset' programmes.

Try instead: Focus on habits, find your triggers, and see a doctor if bloating persists.

2

Leaky gut cleanses and gut tests →

'A home food-sensitivity test will tell me what to cut out'

Low certainty

Why: Food intolerance, IBS, constipation and gut sensitivity are different problems. A 2019 review found that self-reported intolerance, objective test findings and the result of diet changes do not always line up, and dietary treatment gives modest benefit because several carbohydrates can cause symptoms.

Who it applies to: Anyone considering paid at-home 'intolerance' tests.

Try instead: Use a diary and a structured, time-limited elimination with a dietitian or doctor if needed.

17,2

Leaky gut cleanses and gut tests →

Common mistakes

Cutting out many foods at once and for months

Moderate certainty

Why: It makes it impossible to tell what is helping, can reduce fibre and key nutrients, and can delay a diagnosis such as celiac disease. Low-FODMAP eating is meant as a short, structured phase followed by reintroduction.

Who it applies to: Anyone self-directing a strict elimination diet.

Try instead: Change one thing at a time, keep a diary, and ask for dietitian support if you want to try a structured plan.

12,9

Understand Your Food Triggers →

Evidence & safety

What the research shows

Health agencies agree on the basics: bloating is very common, often comes from gas, swallowed air, constipation or sensitive digestion, and can usually be eased with regular smaller meals, movement, avoiding swallowed air and identifying personal food triggers. Stronger trial evidence exists mainly for people with IBS (low-FODMAP eating, peppermint oil, some probiotics and gut-directed psychological therapy). For bloating on its own, high-quality evidence is limited, and persistent bloating needs a medical check.

Limits of the evidence

  • Much of the best research is in people with IBS, not in people with bloating alone, so results may not carry over.
  • Many diet and herb trials are short, small and hard to blind, and probiotic results depend on the strain.
  • The exercise and gas study involved only eight people and a lab gas infusion.
  • Belly massage, herbal teas and gentle yoga are supported by traditional use and health-service advice; we have not cited trials for them.

Precautions and interactions

  • Do not stay on a restrictive diet for months without professional advice.
  • Ask a pharmacist or doctor before using herbs, peppermint oil, fibre or probiotics if you take regular medicines, have a chronic condition, or are pregnant or breastfeeding.
  • Do not stop a prescribed medicine because you think it is causing bloating. Talk to your prescriber.
  • Be careful with laxatives and anti-gas products: use them for a clear reason and short term.

Life-stage considerations

  • Pregnancy and breastfeeding: bloating is common. Stick to the gentle habits and ask a midwife or doctor before using herbs, peppermint oil, fibre supplements or probiotics.
  • Children: persistent bloating, pain, poor growth or vomiting need a doctor. Do not give children restrictive diets or herbal products without advice.
  • Older adults: new or persistent bloating after age 50 needs a medical check. Take care with fibre, laxatives and fluids if you have swallowing or bowel problems, and check herb and supplement interactions with medicines.
  • People with chronic conditions or on regular medicines: check with a pharmacist before supplements.

Warning signs

  • Blood in stool, black stools, or vomiting blood
  • Unexplained weight loss
  • Persistent vomiting
  • Severe, sudden or night-time stomach pain
  • Trouble swallowing
  • A swollen or hard belly, or a lump in the belly
  • Unable to pass stool or wind
  • Fever with bloating
  • Symptoms lasting more than a few weeks or getting worse
  • Persistent bloating with feeling full quickly or pelvic pain
  • Anaemia, or a family history of bowel cancer or inflammatory bowel disease
  • New symptoms at age 50 or older

Claim checks

A low-FODMAP diet cures bloating

Moderate certainty

Trials in IBS show lower bloating, pain and wind during a low-FODMAP diet, but it is a short-term management tool, not a cure. In head-to-head trials it worked about as well as traditional dietary advice, so it is one option among several, and it should be followed by reintroduction.

9,10,11,12

Probiotics get rid of bloating

Low certainty

Meta-analyses in IBS found improvement in bloating and flatulence scores, but the best strain and dose are unclear and benefit is not guaranteed. Evidence for bloating in people without IBS is thin.

13,14

Peppermint oil capsules relieve bloating

Moderate certainty

Trials show better overall symptom and pain relief in IBS than placebo. A direct effect on bloating alone is less clear, and it can cause heartburn.

15,12

Walking after meals helps trapped gas

Low certainty

A small study in people with bloating found gentle pedalling reduced gas retention and symptoms, and the NHS recommends regular exercise. The evidence is limited but the habit is low-risk.

5,3

Cutting out dairy and gluten fixes bloating for everyone

Mixed findings

Only some people have lactose intolerance or celiac disease, and cutting out foods without testing can hide a condition. Benefit varies and is often modest.

17,3

Detox teas and gut cleanses flatten the belly

Not enough evidence

No trial evidence is cited here. Many such products contain laxative herbs that can cause cramps and dehydration.

2

Questions people ask

Is bloating normal?

Some bloating is normal, especially during or after meals. The NIDDK says some gas symptoms are normal, and they become a problem when they happen often, bother you or affect daily life. See a doctor if bloating is frequent, persistent or comes with warning signs.

Why do I feel bloated even when I haven't eaten much?

Bloating is not only about the amount of gas. Research using CT scans found that in some people, bloating relates to how the diaphragm and belly wall move, and a more sensitive gut can make normal amounts of gas feel uncomfortable. Constipation, food intolerance and IBS are also common reasons.

What is the difference between bloating and distension?

Bloating is the feeling of fullness or pressure. Distension is a measurable increase in belly size. They often occur together, but the NIDDK says only about half of people with bloating also have distension.

What is the fastest way to ease bloating?

A gentle walk, sitting upright, slow breaths and avoiding fizzy drinks are low-risk first steps. The NHS also suggests belly massage from right to left. If bloating comes with pain, vomiting, or a hard belly, get medical advice instead.

Should I try a low-FODMAP diet?

It has trial support in IBS, and guidelines recommend a limited trial, but it is meant for a few weeks followed by reintroduction and is best done with a dietitian. Rule out celiac disease and warning signs first.

Do probiotics help bloating?

In people with IBS, meta-analyses found some benefit for bloating and wind, but results depend on the strain and are uncertain. They can cause gas at first. Ask a pharmacist, and see a doctor first if you are immunocompromised.

Does peppermint help?

Enteric-coated peppermint oil beat placebo for overall symptoms and pain in IBS trials. It can cause heartburn, so check with a pharmacist or doctor, especially if you have reflux or take medicines.

Can stress cause bloating?

Stress and worry can make gut symptoms feel worse because the gut and brain are closely linked. Relaxation and gut-directed psychological therapy have been studied in IBS and can help some people.

Why am I more bloated around my period?

The NHS notes that some people feel bloated around the time of their period. If it is severe, new or does not settle once the period ends, see a doctor.

When is bloating serious?

See a doctor if you feel bloated regularly, if it has not improved after diet changes, or if it comes with weight loss or blood in the stool. Get urgent help for bloating with vomiting, a swollen or hard belly, a lump, fever or being unable to pass stool or wind. Persistent bloating can occasionally be a sign of ovarian cancer, so do not ignore it.

References

  1. NIDDK. Symptoms & Causes of Gas in the Digestive Tract. Read 2026-10-31. source
  2. Lacy BE, Cangemi D, Vazquez-Roque M. Management of Chronic Abdominal Distension and Bloating. Clin Gastroenterol Hepatol. 2021;19(2):219-231.e1. source
  3. NHS. Bloating (page last reviewed 21 January 2026). Read 2026-10-31. source
  4. Accarino A, et al. Abdominal distention results from caudo-ventral redistribution of contents. Gastroenterology. 2009. source
  5. Villoria A, Serra J, Azpiroz F, Malagelada JR. Physical activity and intestinal gas clearance in patients with bloating. Am J Gastroenterol. 2006;101(11):2552-7. source
  6. Eswaran S, Muir J, Chey WD. Fiber and functional gastrointestinal disorders. Am J Gastroenterol. 2013;108(5):718-27. source
  7. NIDDK. Eating, Diet, & Nutrition for Irritable Bowel Syndrome (last reviewed November 2017). Read 2026-10-31. source
  8. Black CJ, Thakur ER, Houghton LA, Quigley EMM, Moayyedi P, Ford AC. Efficacy of psychological therapies for irritable bowel syndrome: systematic review and network meta-analysis. Gut. 2020;69(8):1441-1451. source
  9. Halmos EP, Power VA, Shepherd SJ, Gibson PR, Muir JG. A diet low in FODMAPs reduces symptoms of irritable bowel syndrome. Gastroenterology. 2014;146(1):67-75. source
  10. Bohn L, Storsrud S, Liljebo T, et al. Diet low in FODMAPs reduces symptoms of irritable bowel syndrome as well as traditional dietary advice: a randomized controlled trial. Gastroenterology. 2015;149(6):1399-1407. source
  11. Eswaran SL, Chey WD, Han-Markey T, Ball S, Jackson K. A randomized controlled trial comparing the low FODMAP diet vs. modified NICE guidelines in US adults with IBS-D. Am J Gastroenterol. 2016;111(12):1824-1832. source
  12. Lacy BE, Pimentel M, Brenner DM, et al. ACG Clinical Guideline: Management of Irritable Bowel Syndrome. Am J Gastroenterol. 2021;116(1):17-44. source
  13. Ford AC, Quigley EM, Lacy BE, et al. Efficacy of prebiotics, probiotics, and synbiotics in irritable bowel syndrome and chronic idiopathic constipation: systematic review and meta-analysis. Am J Gastroenterol. 2014;109(10):1547-61. source
  14. Ford AC, Harris LA, Lacy BE, Quigley EMM, Moayyedi P. 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. source
  15. Alammar N, Wang L, Saberi B, 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;19:21. source
  16. Hu ML, Rayner CK, Wu KL, et al. Effect of ginger on gastric motility and symptoms of functional dyspepsia. World J Gastroenterol. 2011;17(1):105-10. source
  17. Misselwitz B, Butter M, Verbeke K, Fox MR. Update on lactose malabsorption and intolerance: pathogenesis, diagnosis and clinical management. Gut. 2019;68(11):2080-2091. source

Related on AlternativeMed

Related goals

Manage Excess Gas → Feel More Comfortable After Meals → Ease Occasional Constipation → Increase Fiber Comfortably → Understand Your Food Triggers → Support a Healthy Gut Microbiome → Manage Stress-Related Digestive Discomfort →

Ingredients, foods and supplements

Peppermint → Ginger → Psyllium → Fennel → Fibre supplements compared → Lactobacillus and Bifidobacterium probiotics →

Research, safety and claim-check resources

The low-FODMAP diet → Digestive symptoms: when to get help → How digestion and the microbiome work → Leaky gut cleanses and gut tests → Gut research and evidence → Medication interactions →