Food intolerance/allergy

Last updated: Wednesday, 01, December, 2010
ManifestationsAppropriate Tests

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.





Diarrhoea, especially

  • Disaccharidase deficiencies


See under Diarrhoea - chronic.

Malabsorption, especially

FBC (eosinophilia); albumin; allergen specific immunoglobulin E may be helpful.

Small bowel biopsy, if indicated.