The short explanation
FODMAPs are certain types of carbohydrates that the small intestine absorbs poorly. In people with IBS, they can draw water into the gut and be fermented by bacteria, causing bloating, gas, pain and changes in bowel habit. A low FODMAP diet temporarily reduces these foods to see whether symptoms improve. It is usually done in stages: a short period of reducing high-FODMAP foods, then reintroducing them one at a time to find which ones you personally react to, and finally a long-term diet that avoids only your triggers. Common high-FODMAP foods in Indian diets include onion, garlic, wheat in large amounts, some pulses like rajma and chana, milk, cauliflower, mushrooms, apples and mangoes. Rice, ragi, millets, moong dal in moderation, curd, most vegetables and many fruits are often lower in FODMAPs.
What depends on your situation
The parts of this that change from woman to woman. Uncertainty is stated, not hidden.
- The diet is not meant to be followed strictly for life, as it can reduce fibre and helpful gut bacteria.
- A dietitian experienced in IBS can help adapt it to vegetarian and Indian meals.
- Hing (asafoetida) is often used instead of onion and garlic for flavour.
What this answer cannot determine
The boundary of online education. These need a clinician who can see you.
- This cannot tell you which foods trigger your symptoms or whether this diet is right for you. Your doctor or dietitian can guide you.
Questions for your clinician
Take these with you. You can add any of them to an appointment card.
- How long should I follow the strict phase?
- Can you refer me to a dietitian?
- How do I reintroduce foods safely?
- What if my symptoms do not improve?
When to seek help
Clinician-approved guidance for this topic. When in doubt, being seen is never the wrong choice.
Book an appointment soon
- See a doctor within a few days if you notice blood in stool, weight loss or symptoms waking you at night.
Raise it at a routine appointment
- Book a routine appointment or dietitian visit to plan the diet properly.
Sources
The evidence this explanation is built on.
- Irritable bowel syndrome (IBS) NHS
- Irritable bowel syndrome MedlinePlus (US National Library of Medicine)
- Indigestion NHS
Who wrote and reviewed this
Every AskHer answer names its author. A clinically reviewed answer also names the clinician who signed it off — if no clinician is named below, it has not been clinically reviewed.
- Author
- AskHer Editorial (AI-assisted draft) AskHer's editorial team — not an individual clinician Works in English, தமிழ், हिन्दी
- Clinical reviewer
- Nobody yet No clinician has signed this answer off, and no person on the editorial team has read it yet. That is what the “Written with AI assistance” label means. It is queued for an editor to read, and then for a clinician who works in this area. The sources it was drafted against are listed above.
- Review status
- Written with AI assistance — not yet reviewed by a person
- Last reviewed
- Not yet reviewed by a person
- Version
- 1
Correction history
Substantive changes are listed, not quietly edited away.
No corrections have been made since this answer was first published.
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