IBD

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

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What it is

Inflammatory bowel disease, or IBD, is a long-term condition in which the immune system drives ongoing inflammation in the digestive tract. It is a medical diagnosis made by a gastroenterologist, using blood and stool tests, endoscopy and imaging. It is not the same thing as irritable bowel syndrome, even though the names sound alike.

The two main forms are ulcerative colitis, which affects the colon and rectum, and Crohn’s disease, which can involve any part of the gut. This section also covers eating during a flare, staying well in remission and the difference between IBD and IBS.

IBD is more common than it used to be in India, and it is often diagnosed late because early symptoms are mistaken for infection, piles or IBS. Intestinal tuberculosis is also a frequent look-alike in India, and the distinction matters because the medical plans are entirely different. This is why specialist assessment, not self-diagnosis, is so important.

Common symptoms

• Diarrhoea that is persistent, sometimes with blood or mucus
• Cramping abdominal pain, often worse before a bowel movement
• Urgency and a sense of incomplete emptying
• Tiredness, low iron and weight loss
• Joint pain, mouth ulcers or eye and skin problems in some people
• Periods of flare followed by quieter spells

How gut bacteria may be involved

People with IBD tend to show a less diverse gut community on average than people without it, with fewer of the bacteria associated with butyrate production. Whether that shift is a cause, a consequence of inflammation, or both is still being worked out. Genetics, immune function and environment all play parts.

Because the cause is not a simple bacterial imbalance, a synbiotic should never be viewed as a way to control IBD. Some people with stable disease and their doctor’s agreement choose to add probiotics or prebiotic foods as a supplement to medical care. Evidence differs by condition: it is somewhat stronger for pouchitis than for Crohn’s disease.

Diet and everyday habits

There is no single IBD diet. What suits you in remission may not suit you in a flare, and a dietitian who knows IBD is worth seeing, especially if strictures or weight loss are present.

• In remission, a varied diet with plenty of vegetables, pulses, whole grains and fermented foods like curd is generally encouraged
• In a flare, softer and lower-residue choices such as khichdi, well-cooked dal water, idli, peeled and cooked vegetables and curd rice are easier for many people
• Small, frequent meals can be more manageable than three large ones
• Ask your clinic about iron, vitamin B12, vitamin D and calcium, which are commonly low
• Avoid crash diets and long lists of banned foods without medical advice

Stopping smoking, keeping up with prescribed medicines and managing stress and sleep all matter. Check with your doctor before using NSAID painkillers, which can aggravate IBD.

Many people find that keeping a simple diary during remission helps them spot early warning signs of a flare, such as a change in stool frequency or a new night-time urge. Bring it to your appointments. Regular vaccinations, bone health checks and mental health support are also part of good IBD care, and your team can arrange them.

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When to see a doctor first

If you have not been diagnosed, see a doctor for any of these and do not wait:

• Blood in stool or diarrhoea lasting more than two to four weeks
• Night-time diarrhoea
• Unexplained weight loss, fever or anaemia
• Pain in the lower right abdomen with persistent fever

If you already have IBD, call your team urgently for severe pain, a swollen abdomen, heavy bleeding, fever, repeated vomiting or signs of dehydration.

How BioMeBar approaches it

We work alongside your gastroenterologist, never in place of them. If you tell us you have IBD, we ask about your medicines and disease status, and we only suggest a personalised synbiotic when it fits with what your doctor is comfortable with. Food guidance focuses on keeping nutrition adequate and keeping your diet as varied as your gut allows.

We do not diagnose, treat or cure IBD. Check-ins give you a place to note how things are going so you have clear notes to bring to appointments.

Common questions

Is IBD the same as IBS?

No. IBD involves visible inflammation and can damage the gut, whereas IBS is a functional disorder without that damage. Our comparison page goes through the differences.

Can diet cause IBD?

Diet is not considered the cause, though some patterns, such as high intake of ultra-processed food, have been associated with higher risk in studies. Food can affect symptoms and nutrition once the disease is present.

Are probiotics safe with IBD?

Many people with stable disease use them without problems, but people on strong immune-suppressing medicines or with central lines may face risks. Speak to your gastroenterologist first.

Can stress cause a flare?

Stress is associated with symptoms in people with IBD, though it is not thought to cause the disease itself. Sleep, support and talking with your team about anxiety are all part of care.

Sources

• ACG Clinical Guideline: Ulcerative Colitis in Adults (2019)
• ACG Clinical Guideline: Management of Crohn’s Disease in Adults (2018)
• NICE guideline NG130: Ulcerative colitis
• NICE guideline NG129: Crohn’s disease
• ESPEN guideline on clinical nutrition in inflammatory bowel disease

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.