What is normal?
Passing gas is normal. Studies suggest an average of 8–14 times a day; up to 25 can still be normal. A number alone does not explain discomfort or a sudden change.
Read the NIDDK guide ↗SIX SHORT GUIDES / SOURCED INFORMATION
A little gas science.
The science behind the joke, with links to the National Institute of Diabetes and Digestive and Kidney Diseases.
Why does it happen?
Swallowed air and gut bacteria both contribute. Bacteria in the large intestine release gas while breaking down carbohydrates that were not fully digested earlier. Small amounts of sulfur can contribute to the smell.
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Why beans?
Beans, certain vegetables, dairy, some fruits and sugar alcohols can increase gas for some people. Keep a food-and-symptom diary to look for patterns. A doctor or dietitian can help you make changes without needlessly restricting your diet.
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Small habits, less air.
Eating slowly and sitting down for meals can help reduce swallowed air. Gum, fizzy drinks, hard sweets and straws may add to it. Smaller meals may help some people.
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What about digestive aids?
Treatment depends on the cause. For example, lactase products may help someone with lactose intolerance. Ask a clinician before trying supplements or probiotics, rather than treating every symptom as ordinary gas.
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When to ask for help.
Talk to a doctor if gas bothers you, changes suddenly, or comes with abdominal pain, constipation, diarrhoea or weight loss.
Read the NIDDK guide ↗Prepared by Fartaholic. Sources checked 10 October 2026. General information, not a diagnosis or personalised treatment plan.