What Should I Eat If I Have Coeliac Disease?
Quick answer: The only treatment for coeliac disease is a strict, lifelong gluten-free diet. Gluten (found in wheat, barley, and rye) must be completely eliminated — even trace amounts cause intestinal damage.
What to Eat
Naturally gluten-free grains (rice, quinoa, oats marked GF, millet, buckwheat, amaranth)
These grains contain no gluten and provide the carbohydrate base for a coeliac diet.
All vegetables (fresh or frozen)
Naturally gluten-free; provide fibre, vitamins, and minerals often deficient after coeliac diagnosis.
All fruits
Naturally gluten-free — fruits in their whole form are completely safe.
Meat, poultry, and fish (unprocessed)
All unprocessed meats are naturally gluten-free — avoid pre-marinated or processed varieties.
Eggs and dairy (plain)
Naturally gluten-free; dairy also helps replenish calcium and vitamin D often depleted by coeliac malabsorption.
Legumes (lentils, beans, chickpeas)
Protein, iron, and fibre — valuable gluten-free sources that address common coeliac nutritional gaps.
Nuts and seeds (plain)
Naturally gluten-free; provide healthy fats, zinc, and magnesium often depleted in coeliac disease.
Certified gluten-free labelled products
For processed foods, look for certified GF label which guarantees <20ppm gluten — the international food safety threshold.
What to Avoid
Wheat and all wheat derivatives (spelt, kamut, semolina, durum, farro)
All contain gluten — the immune trigger in coeliac disease. Must be completely eliminated for life.
Barley (and malt, malt vinegar, beer made from barley)
Contains hordein, a gluten protein — barley is insidious as malt is in many processed foods.
Rye
Contains secalin, another gluten protein — common in dark breads, crispbreads, and some whiskies.
Conventional oats (not labelled gluten-free)
Standard oats are cross-contaminated with wheat in most production facilities. Only certified GF oats are safe in established coeliac disease.
Shared cooking surfaces and equipment
Cross-contamination is a genuine danger — even trace gluten causes immune damage in coeliac disease. Shared toasters and pasta water are common culprits.
Hidden gluten (soy sauce, some stocks, licorice, barley malt, dextrin)
Gluten hides in many processed foods — always read labels for wheat, barley, rye, malt, and their derivatives.
Hydration
All plain drinks are fine. Be cautious with: beer (contains maltose/barley — drink GF-certified beer or cider), some flavoured waters/squashes (may contain malt), and some herbal teas with unusual ingredients. All plain water, tea, coffee, wine, and spirits are safe.
Tips
- •At diagnosis, get nutrient testing — iron, B12, folate, vitamin D, zinc, and calcium are commonly depleted from malabsorption-related damage.
- •Intestinal healing takes 1–2 years on a strict GF diet — symptoms may improve faster but full mucosal recovery takes longer.
- •When eating out, always explicitly declare coeliac status (not just 'gluten intolerance') — this triggers allergen protocols in most kitchens.
- •Dedicated GF cookware (toaster, pasta pot, chopping board) prevents home cross-contamination.
- •Oats: introduced carefully once established and only certified GF — up to 20% of coeliac patients react to avenin in oats regardless.