What should you know about a full food intolerance test?

Food intolerance describes difficulty digesting or reacting to a food without the immune mechanism typical of a food allergy. Symptoms may include bloating, diarrhoea, abdominal pain, nausea or wind, and can have many other causes. A clinician may review timing, portion size, preparation, medicines and bowel habits. Depending on the suspected trigger, assessment may involve a supervised elimination and reintroduction plan or a targeted test. Broad home panels may not establish the cause and can encourage unnecessary restriction.

Keep a food and symptom diary that records ingredients, timing, amount, symptoms and bowel changes. Do not remove several food groups for a long period without nutritional guidance. Bring test reports and a list of medicines. A nutrition counsellor can help protect nutritional balance while a suspected trigger is assessed.

Arrange review for persistent bloating, diarrhoea, weight change, recurrent pain or symptoms that limit eating. Seek urgent help for swelling of the lips or tongue, breathing difficulty, faintness, blood in stool, severe abdominal pain or signs of significant dehydration; these features need assessment beyond routine intolerance testing.

Ask which diagnosis is being considered, whether a targeted test is useful, how long an elimination plan should last, and how to reintroduce foods safely.