Gluten sensitivity

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

What it is

A lot of people feel better when they eat less wheat, and a fair number of them do not have coeliac disease. Non-coeliac gluten sensitivity is the term used for people who get symptoms after eating gluten-containing foods, yet test negative for coeliac disease and wheat allergy. The 2015 Salzburg consensus laid out how to go about identifying it, and it is still a diagnosis of exclusion.

The picture is complicated. Some people reacting to wheat may actually be responding to fructans, a FODMAP, rather than to gluten itself, and others may have other irritable bowel patterns. That is one reason to get tested before you remove gluten. The page gluten sensitivity vs celiac disease explains the differences.

Common symptoms

Symptoms are non-specific and can overlap with coeliac disease and IBS:

Bloating and abdominal discomfort within hours to a day of eating wheat
Loose stools or constipation
Headaches, foggy thinking or tiredness
Joint or muscle aches reported by some people
Skin complaints such as rash, though a blistering itchy rash should be examined for dermatitis herpetiformis
Symptoms that improve when wheat is reduced and return on re-exposure

Because these symptoms are so general, it helps to record them in a food and symptom diary for two to three weeks while you still eat your usual diet.

How gut bacteria may be involved

Gluten is a protein that is only partly digested in the human gut. In coeliac disease it triggers an autoimmune reaction, and in wheat allergy an allergic one, but in gluten sensitivity the mechanism is unclear. Research has looked at changes in intestinal permeability and immune activation, and at the way gut bacteria ferment wheat fructans, but findings are inconsistent.

Wheat is also a major source of prebiotic fibre in many Indian diets. Cutting it out entirely may lower fibre intake and the variety of plant foods feeding gut bacteria, which is worth keeping in mind. A better aim is often to understand which part of wheat is the issue. See gut barrier and intestinal permeability for how researchers think about the gut lining.

Diet and everyday habits

Test first, then adjust. If your doctor confirms that coeliac disease is not the cause and suggests trying less gluten, there are many familiar alternatives:

Use jowar, bajra, ragi, rice, maize, besan, kuttu (buckwheat) and rajgira (amaranth) flours for rotis, chillas and thalipeeth
Rely on naturally gluten-free staples such as rice, dal, idli, dosa, poha, sabudana and most sabzis
Check hing, since many commercial brands are compounded with wheat flour; look for a gluten-free label
Watch hidden sources: soy sauce, malt, some masala blends, ready gravies, semolina (sooji), dalia, vermicelli and bakery items
Be cautious with oats unless labelled gluten-free, since cross-contamination is common
Keep fibre up with pulses, vegetables, fruit and seeds so the diet does not narrow
Reintroduce wheat later under guidance to see whether you react to all of it or only large servings

A packet marked gluten-free is not automatically healthier. Fresh dals and vegetables are better foundations than substitute biscuits.

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When to see a doctor first

Do not remove gluten before testing for coeliac disease, since blood tests become unreliable once you stop. See a doctor first if you have:

Iron deficiency anaemia, low vitamin B12 or low vitamin D without a clear cause
Unexplained weight loss, chronic diarrhea or oily stools
A first-degree relative with coeliac disease, or type 1 diabetes or autoimmune thyroid disease
A blistering, intensely itchy rash
Mouth ulcers, bone pain or delayed growth in a child
Swelling of the lips or throat, hives or breathlessness after wheat, which could be an allergy and needs urgent care
Severe or persistent abdominal pain

Coeliac disease is recognised in parts of North India, particularly Punjab and Haryana, where wheat is a staple, but it can occur anywhere.

How BioMeBar approaches it

BioMeBar does not test for or diagnose gluten sensitivity or coeliac disease. If your doctor has ruled out coeliac disease and wheat allergy, we look at your gut profile and your symptoms, match a personalised synbiotic and offer food and lifestyle guidance that keeps meals varied, including millet-based options. Check-ins help you and your coach see how your digestion responds as you adjust. BioMeBar does not diagnose, treat or cure any condition, and a synbiotic is not a substitute for medical care.

Common questions

Can I take a coeliac test after going gluten-free?

Results may be unreliable. Doctors usually ask you to eat gluten for a period before blood tests or biopsy, and you should follow their instructions.

Is gluten sensitivity the same as coeliac disease?

No. Coeliac disease is an autoimmune condition with intestinal damage and carries long-term risks. Gluten sensitivity does not cause that damage, though symptoms can feel similar.

Are millets always gluten-free?

Ragi, jowar and bajra do not contain gluten, but they can be milled in facilities that also handle wheat. Packaged flours labelled gluten-free are safer if you need to be strict.

Is a gluten-free diet healthier in general?

Not for people without a reason to avoid it. Whole wheat is a useful source of fibre and B vitamins in Indian diets.

Sources

ACG clinical guideline on diagnosis and management of celiac disease
ESPGHAN guidelines for diagnosing coeliac disease
NICE guideline NG20 on coeliac disease
Salzburg consensus on non-coeliac gluten sensitivity (2015)

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.