What should you know about hair analysis for food intolerance?

Food intolerance describes difficulty digesting or responding to a food without the same immune mechanism as a food allergy. A hair sample does not measure digestion in a dependable clinical way, so a report listing many foods may be misleading. Symptoms such as bloating, abdominal discomfort or diarrhoea can have several causes and may vary with portion size, preparation and timing.

A clinician may ask about bowel habits, weight change, medicines, previous illness and the relationship between eating and symptoms. Food allergy is a separate concern and can cause rapid reactions; it needs a different assessment.

Keep a short diary of foods, portions, symptoms and timing. Avoid cutting out several food groups without guidance, because restrictive eating can reduce nutrition and make the pattern harder to interpret. If a specific food seems linked, discuss a structured elimination and reintroduction plan with a clinician or registered dietitian. Formal food intolerance testing may be considered when the history supports it.

Nutrition counselling can help you maintain balanced meals while symptoms are being clarified. Do not use a hair report to decide that a child should avoid staple foods.

Arrange medical review for ongoing diarrhoea, persistent bloating, blood in the stool, repeated vomiting, dehydration symptoms or unintentional weight loss. Seek urgent help for breathing trouble, facial or throat swelling, collapse, or a rapidly developing reaction after eating, because these features suggest an emergency rather than ordinary intolerance.

What causes fit my symptom pattern? Do I need testing for a specific digestive condition? Is a supervised food challenge or elimination plan suitable? How can I meet my nutritional needs if a food must be avoided?