Last updated: Wednesday, 01, December, 2010
Specific exclusion diets and food challenges are the most reliable diagnostic tests; they should be undertaken only under specialist supervision.
Skin prick allergen testing and allergen specific immunoglobulin E may be helpful in identifying allergic reactions to foods.
Some tests which are claimed to diagnose food allergy, eg, Vega and cytotoxic food testing, have no scientific validity.
See under Diarrhoea - chronic.
FBC (eosinophilia); albumin; allergen specific immunoglobulin E may be helpful.
Small bowel biopsy, if indicated.