Leaky gut diet

Reviewed by Dr. Nikita Dinger, Founder & CEO, BioMeBar. Last reviewed 7 October 2026.

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Who this is for

You may have read about a “leaky gut” online and wondered whether your bloating, skin issues or fatigue are connected. This page is for adults who want to look after their gut lining through food while staying realistic about what is known. That popular term is not a recognised diagnosis. Doctors usually speak about intestinal permeability, which is a real but still-researched feature of the gut. Read our condition page and the explainer on the gut barrier and intestinal permeability first.

The idea behind it

The gut lining is a single layer of cells joined by tight junctions. It lets nutrients through and keeps most larger particles and microbes out. Intestinal permeability describes how easily things pass across that layer. It changes in some conditions, such as coeliac disease and IBD, and it can shift temporarily with infections, heavy alcohol use, and some medicines such as long-term NSAIDs. Researchers are studying how diet affects it, but no food has been proven to repair it. What we can say is that a varied, fibre-rich diet feeds bacteria that make short-chain fatty acids, which the gut lining uses as fuel. See short-chain fatty acids. So the diet below is about good general gut habits, not a fix.

What to eat

• Whole grains and millets: oats, ragi, jowar, bajra, brown rice, whole wheat.
• Pulses and dals, with variety: moong, masoor, chana, rajma, in portions you tolerate.
• Vegetables of many colours, including leafy greens, beetroot, carrot, bhindi, drumstick, pumpkin, and cooked onion and garlic if tolerated.
• Fruits: banana (a slightly green one has more resistant starch), guava, papaya, amla, apple, berries.
• Fermented foods that fit your diet: homemade curd, chaas, idli, dosa, dhokla, kanji. See fermented Indian foods.
• Omega-3 sources: fish such as sardine and mackerel for non-vegetarians, and flaxseed, walnuts and mustard oil in modest amounts for others.
• Protein: eggs, fish, chicken, dal, paneer, tofu.
• Turmeric with black pepper in cooking and ginger, as part of everyday meals.

What to limit or go slowly with

Heavy alcohol and frequent use of anti-inflammatory painkillers are the best-documented stresses on the gut lining, so talk to your doctor before reducing any medicine. Ultra-processed packaged snacks, sugary drinks, and frequent deep-fried food push out the plants your gut bacteria need. Do not take on a long list of banned foods, such as all grains, all dairy and all legumes, on the basis of a “gut repair protocol” found online. These can be nutritionally poor, are not supported by good evidence, and should only be tried with a dietitian or doctor and for a limited period, not permanently. Be sceptical of supplements promising to “seal” the gut.

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A sample day

Meal	Idea
Breakfast	Ragi porridge or vegetable oats with a banana, a spoon of ground flaxseed
Lunch	Rice or roti, mixed dal, two vegetables, cucumber salad, curd
Snack	Guava or an amla-flavoured buttermilk, a handful of walnuts
Dinner	Vegetable khichdi, fish curry or paneer bhurji, steamed greens

Habits that help

• Keep meal times regular and eat unhurriedly.
• Cook mostly at home with simple methods: steaming, pressure cooking, light tempering.
• Limit alcohol, and do not smoke.
• Sleep seven to eight hours, and manage stress. The gut and brain affect each other.
• Walk daily.
• Increase fibre slowly and drink enough water.
• Take painkillers with food and only as your doctor advises.

Marketing around gut repair is loud, and it often leads people to spend money on powders and tests. A better first step is to look at the basics: how many different plants you eat each week, how much alcohol you drink, how often you take painkillers, how you sleep, and whether your symptoms have been properly checked by a doctor. These are cheap, practical and well supported.

If you are keen to try something, start with variety. Count how many different plant foods you eat in a week, including grains, pulses, vegetables, fruits, nuts, seeds and herbs, and try to raise that number slowly. Variety is a simple, low-cost goal with no magic number. Familiar Indian meals such as khichdi, sambar and mixed-dal tadka already carry many ingredients.

When to see a doctor first

Symptoms often blamed on a permeable gut, such as diarrhoea, weight loss, anaemia, blood in stool, skin rashes, joint pain or constant fatigue, can come from coeliac disease, IBD, thyroid problems, infections and other conditions that need proper testing. See a doctor before trying diets, particularly if symptoms are persistent, severe or worsening.

Common questions

Can a blood or stool test prove I have raised intestinal permeability?

There are tests sold for this, but none are accepted as reliable for diagnosing a condition in everyday practice. See how to read a stool test.

Does gluten damage the gut barrier?

In coeliac disease, yes. In others the evidence is less clear. Test for coeliac disease before removing gluten.

Will probiotics fix it?

Some strains are being studied for their effects on the gut barrier, but results are early. They are not a repair.

Is bone broth necessary?

No. There is no good evidence that it repairs the gut lining.

Sources

• ICMR-NIN Dietary Guidelines for Indians
• Published scientific reviews on intestinal permeability from gastroenterology societies
• Monash University FODMAP resources

Talk to us

If you would like to know whether BioMeBar can support you, message us on WhatsApp. Tell us your symptoms and your pincode and we will take it from there. Not sure where to start? Take the free gut assessment, which takes about three minutes.

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BioMeBar provides nutrition and gut health guidance and does not replace medical care. See a doctor for severe, persistent or worrying symptoms.