Eating well

Gluten-Free Diet

A gluten-free diet avoids gluten, a protein in wheat, barley and rye. It is essential for people with coeliac disease and some others, but not needed by most people.

Written by Meds Global Health Clinical Team · Clinically reviewed by Dr Muhammad Suffyan, MB BS, Founder & Clinical Director · Last reviewed · How we review

What it means

A gluten-free diet excludes gluten — a protein found in wheat, barley and rye and therefore in many breads, pastas, cereals and processed foods. Naturally gluten-free foods include rice, potatoes, most fruit and vegetables, meat, fish and pulses.

Why it matters

For people with coeliac disease, gluten damages the gut and eating it causes symptoms and long-term harm, so a strict gluten-free diet is essential and lifelong. Some others have non-coeliac gluten or wheat sensitivity. For most people, however, avoiding gluten offers no proven health benefit.

Practical tips

How to make it work

  • If you suspect coeliac disease, get tested before removing gluten, as tests are unreliable once you have already cut it out.
  • Check food labels carefully, as gluten appears in many unexpected products.
  • Base meals on naturally gluten-free foods: rice, potatoes, vegetables, fruit, meat, fish, eggs and pulses.
  • Choose certified gluten-free versions of bread, pasta and cereals if you have coeliac disease.
  • Avoid cross-contamination at home, for example with shared toasters or chopping boards.
  • Ask for a referral to a dietitian if you are newly diagnosed with coeliac disease.

Good to know. Do not start a gluten-free diet for suspected coeliac disease before being tested, as this can give a falsely normal result. A gluten-free diet is not automatically healthier and some processed gluten-free foods are high in fat, sugar or salt.

Answers

Gluten-Free Diet: frequently asked questions

Should I go gluten-free to be healthier?

For most people there is no proven benefit, and cutting out gluten unnecessarily can make your diet more restrictive and expensive. A gluten-free diet is essential for coeliac disease and helpful for some sensitivities, but not a general health measure.

Why get tested before cutting out gluten?

Tests for coeliac disease rely on you still eating gluten. If you remove it first, the tests can be falsely normal, making it harder to get an accurate diagnosis. See your GP before changing your diet.

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Education and reference only. This is general UK health guidance, not personal medical or dietitian advice. If you have a health condition or specific needs, check with your GP, pharmacist or a registered professional before making big changes.

Sources

Where this is drawn from

  • NHS — Eat well & Live Well
  • British Dietetic Association (BDA)
  • UK Scientific Advisory Committee on Nutrition (SACN)

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