What Foods Cause Gas and Bloating?

How to identify your triggers and still eat well

You eat a healthy meal. Then it happens. The bloating. The pressure. Then the embarrassing wind, some call it gas. You wonder what you did wrong. The truth is, many healthy foods can cause gas and bloating. Beans, broccoli, onions, apples, dairy, even whole grains – all are nutritious, and all can ferment in your gut and produce gas. The problem is not the food itself, but how your digestive system processes it. The best approach is not to eliminate all healthy foods, but to identify your personal triggers, learn preparation tricks that reduce gas, and use herbal teas to ease discomfort when it happens. This guide explains which foods are most likely to cause gas, why they cause it, and how you can still enjoy them without the unpleasant aftermath.

If you’d like to try these teas for yourself, we’ve curated a selection of high-quality, tested sources below. Every product we recommend has been chosen for purity and potency, or visit our online Herbal Tea Shop for even more choice.

Click the link for a complete, evidence-based guide to the best herbal teas for digestion, including specific herbs and use cases.

Looking for a specific herbal tea? Browse the full A–Z list here:
Herbal Teas A-Z List

How the digestive system creates gas

Gas or wind is a normal byproduct of digestion. When you eat, your stomach and small intestine break down some foods. What remains passes into the large intestine, where trillions of gut bacteria ferment it. This fermentation process produces gas – mainly hydrogen, carbon dioxide, and for some people, methane. Most of this gas is absorbed into the bloodstream or expelled without notice. Problems arise when you produce too much gas and bloating occurs; ie when it becomes trapped, or when your gut is sensitive to normal amounts of gas.

Several factors influence how much gas and bloating you experience:

• The types of food you eat – Some contain carbohydrates that humans cannot digest, which bacteria love to ferment. This can produce excessive gas and bloating.
• How quickly you eat – Swallowing air (aerophagia) adds gas to your digestive tract.
• Your gut bacteria composition – Everyone has a unique microbiome. A food that causes wind for you may be fine for someone else.
• Underlying conditions – Irritable bowel syndrome (IBS), lactose intolerance, fructose malabsorption, and small intestinal bacterial overgrowth (SIBO) can all increase gas and bloating.

Foods that commonly cause gas and bloating

Legumes and beans

Beans, lentils, chickpeas, and peas are among the most responsible for gas and bloating. They contain raffinose, a complex sugar that humans lack the enzyme to digest. Raffinose passes intact into the large intestine, where bacteria ferment it enthusiastically. The result is gas or wind – often a significant amount…

Common culprits: Kidney beans, black beans, pinto beans, chickpeas, lentils, soybeans.

How to reduce gas and bloating: Soak dried beans overnight, discard the water, and cook them thoroughly. Canned beans cause less gas than dried. Rinse canned beans well. Start with small portions and gradually increase to let your gut bacteria adapt. Try digestive aids like fennel or ginger tea after meals.

Cruciferous vegetables

Broccoli, cauliflower, cabbage, Brussels sprouts, kale, and bok choy contain raffinose (like beans) and sulphur-containing compounds. These vegetables are extremely healthy, packed with vitamins and cancer-fighting compounds, but they are also wind-producing.

Common culprits: Broccoli, cauliflower, cabbage, Brussels sprouts, kale.

How to reduce gas and bloating: Cook them thoroughly. Steaming or roasting reduces gas potential more than eating them raw. Start with small portions. Pair them with carminative herbs like fennel or caraway.

Onions and garlic

Onions, garlic, leeks, shallots, and scallions contain fructans, a type of carbohydrate that many people struggle to digest. Fructans are also common triggers for irritable bowel syndrome (IBS). Unfortunately, onions and garlic are everywhere – in sauces, dressings, marinades, and spice blends.

Common culprits: Onions, garlic, leeks, shallots, scallions.

How to reduce gas and bloating: Cook them thoroughly; heat breaks down some fructans. Use garlic-infused oil (the fructans are not oil-soluble, so the flavour remains without the digestive trigger). Try asafoetida (hing) as a substitute in cooking.

Wheat and other grains

Wheat, barley, and rye contain fructans (like onions) and gluten. For people with coeliac disease or non-coeliac gluten sensitivity, gluten causes digestive distress. But even without gluten sensitivity, the fructans in wheat can cause gas.

Common culprits: Bread, pasta, cereals, crackers, barley, rye.

How to reduce gas and bloating: Try sourdough bread – the fermentation process breaks down some fructans. Choose gluten-free grains like rice, quinoa, oats (certified gluten-free), and millet. Reduce portion sizes.

Dairy products

Milk, cheese, yoghurt, and ice cream contain lactose, a sugar that requires the enzyme lactase to digest. Many adults produce less lactase as they age, a condition called lactose intolerance. Undigested lactose ferments in the large intestine, producing gas, bloating, and sometimes diarrhoea.

Common culprits: Milk, soft cheese, ice cream, cream, yoghurt (though yoghurt has less lactose due to fermentation).

How to reduce gas and bloating: Choose lactose-free milk and dairy products. Take lactase enzyme tablets before eating dairy. Hard cheeses (cheddar, parmesan) have less lactose than soft cheeses. Yoghurt with live cultures is often better tolerated.

High-fructose fruits

Apples, pears, watermelon, mangoes, and dried fruits contain fructose, a simple sugar. Some people have fructose malabsorption, meaning their small intestine cannot absorb fructose efficiently. The excess fructose travels to the large intestine and ferments.

Common culprits: Apples, pears, watermelon, mangoes, dates, figs, honey (which is high in fructose).

How to reduce gas and bloating: Choose lower-fructose fruits like bananas, berries, citrus fruits, and grapes. Limit portion sizes. Avoid fruit juices, which concentrate fructose.

Carbonated beverages

Soda, sparkling water, beer, and champagne introduce gas directly into your digestive tract. The bubbles are carbon dioxide, which adds to any gas produced by fermentation.

Common culprits: Soda, sparkling water, beer, champagne, carbonated energy drinks.

How to reduce gas and bloating: Switch to still water. If you crave fizz, let the drink sit for a few minutes to lose some carbonation before drinking.

Sugar alcohols and artificial sweeteners

Sorbitol, mannitol, xylitol, and erythritol are sugar alcohols used in sugar-free candies, gum, protein bars, and some “low-carb” products. They are poorly absorbed and ferment enthusiastically in the large intestine. Even small amounts can cause significant gas, bloating, and diarrhoea.

Common culprits: Sugar-free gum, sugar-free candies, protein bars, some low-carb snacks.

How to reduce gas and bloating: Read labels. Avoid products containing sorbitol, mannitol, and xylitol. Erythritol is better tolerated but can still cause gas in large amounts.

Other factors that contribute to gas

Eating too quickly – You swallow air along with your food.

Chewing gum – Constant chewing leads to swallowed air.

Drinking through a straw – This also introduces air into your digestive tract.

Constipation – Slower transit time gives bacteria more opportunity to ferment.

Stress – The gut-brain connection means stress can alter digestion and increase gas sensitivity.

How to identify your personal triggers

No two digestive systems are identical. The foods that cause gas for your friend may be fine for you. The best way to identify your triggers is an elimination diet.

1. Keep a food and symptom diary – For one to two weeks, write down everything you eat and drink, and rate your gas and bloating on a scale of 1 to 10.
2. Look for patterns – Do symptoms appear after beans? Dairy? Onions? Apples?
3. Eliminate suspected triggers – Remove one food group at a time for one to two weeks and see if symptoms improve.
4. Reintroduce systematically – Add the food back and see if symptoms return.

Common elimination protocols include:

• Low FODMAP diet – Eliminates fermentable carbohydrates (fructans, lactose, fructose, sugar alcohols, and raffinose). This is the most evidence-based approach for IBS.
• Lactose-free trial – Eliminate dairy for two weeks.
• Gluten-free trial – Eliminate wheat, barley, and rye for two weeks.

Herbal teas that can help when gas strikes

Even with careful eating, gas happens. These herbal teas can provide relief:

• Fennel tea – A classic carminative that relaxes the digestive tract and helps trapped gas pass.
• Peppermint tea – Antispasmodic and carminative. (Avoid if you have acid reflux.)
• Ginger tea – Stimulates digestion and reduces fermentation.
• Chamomile tea – Gentle antispasmodic and anti-inflammatory.
• Anise tea – Similar to fennel, sweet and effective for gas.

Drink a cup after meals or when you feel gas building.

If you’d like to try these teas for yourself, we’ve curated a selection of high-quality, tested sources below. Every product we recommend has been chosen for purity and potency, or visit our online Herbal Tea Shop for even more choice.

When to see a doctor

Gas and bloating are usually harmless, but they can sometimes signal a more serious condition. Seek medical evaluation if you experience:

• Severe or persistent abdominal pain
• Unexplained weight loss
• Blood in your stool
• Fever
• Nausea and vomiting
• Symptoms that interfere with your daily life despite dietary changes

These could indicate coeliac disease, inflammatory bowel disease (Crohn’s, ulcerative colitis), ovarian cancer, or other conditions.

FAQ

What foods cause the most gas?
Beans, lentils, broccoli, cauliflower, cabbage, onions, garlic, wheat, dairy (for lactose-intolerant people), apples, and carbonated drinks are among the most common gas producers.

Can healthy foods cause gas?
Yes. Many healthy foods – broccoli, beans, apples, whole grains – are also gas-producing. This does not mean they are bad for you. It means your digestive system needs time to adapt, or you need to prepare them differently.

How can I reduce gas from beans?
Soak dried beans overnight, discard the water, and cook them thoroughly. Rinse canned beans well. Start with small portions and gradually increase. Use digestive aids like fennel or ginger tea.

Is it normal to have gas every day?
Yes. The average person passes gas 13–21 times per day. Problems arise when gas becomes painful, excessive, or socially distressing.

Should I stop eating gas-producing foods entirely?
No. These foods are nutritious and support gut health. The fibre in beans and vegetables feeds beneficial gut bacteria. Instead of eliminating them, learn preparation tricks, start with small portions, and use herbal teas for relief.

Conclusion

Many healthy foods can cause gas and bloating – beans, broccoli, onions, apples, dairy, and wheat among them. This does not mean they are bad for you. It means your digestive system needs support. By identifying your personal triggers, using preparation techniques that reduce gas (soaking beans, cooking vegetables thoroughly, choosing lactose-free dairy), and keeping herbal teas like fennel and peppermint on hand for relief, you can still enjoy a nutritious, varied diet without the unpleasant aftermath.

Recommended Products

If you’d like to try these teas for yourself, we’ve curated a selection of high-quality, tested sources below. Every product we recommend has been chosen for purity and potency, or visit our online Herbal Tea Shop for even more choice.

👉 Best to try first: Fennel Tea
Fennel tea is one of the best overall choices for gas and bloating because it combines carminative, antispasmodic, and digestive-soothing properties in one gentle herbal tea. It may help relax intestinal muscles, reduce trapped gas, ease abdominal discomfort, and calm post-meal bloating naturally. Fennel is also mild, pleasant-tasting, naturally caffeine-free, and suitable for regular daily use.
Start here.
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Peppermint tea (loose leaf): https://amzn.to/4lIQSyi
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Chamomile tea (loose leaf): https://amzn.to/3Pv6zgo
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Anise tea (loose leaf): https://amzn.to/4sHROpc
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Manuka Honey: https://amzn.to/47p7i9g
High-quality Garlic press: https://amzn.to/4sFBsxD
Tea infuser: https://amzn.to/4lAToGE
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Visit our online Herbal Tea Shop for more choice!

Do you read novels? Visit our bookshop to check out the ‘culturally grounded, Otherworldly narratives’ by Owen Jones.

Looking for a specific herbal tea? Browse the full A–Z list here:
Herbal Teas A-Z List

Further Reading

For a full evidence-based overview of herbal tea benefits, safety, and quality considerations, read our complete guide to Herbal Tea Benefits

1] For immediate gas relief, see:
Herbal Tea for Gas Relief
2] For bloating support, see:
Can Herbal Tea Help with Gas and Bloating?
3] For fennel tea specifically, see:
Fennel Tea
4] For safety guidance on herbal teas, see:
Are Herbal Teas Safe?

Visit our bookshop to check out the ‘culturally grounded, Otherworldly narratives’ by Owen Jones.

References

1] National Health Service (NHS) – Bloating and Gas
Provides medical guidance on causes and self-care for gas and bloating.
2] National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) – Gas in the Digestive Tract
Explains the science of gas production and common triggers.
3] Mayo Clinic – Gas and gas pains
Provides medical guidance on symptoms, causes, and when to see a doctor.
4] Cleveland Clinic – Foods That Cause Bloating
Provides practical guidance on identifying and managing trigger foods.