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Food Intolerance

Food intolerance refers to a physical response to a food or food additive that is not an allergic reaction. It differs from a food allergy in that it does not involve the immune system and it is much more common.

Food intolerances are often mistaken as food allergies. Some common food intolerances include food additives like MSG and sulfites; lactose; gluten; food poisoning; histamine toxicity; and ulcers and cancers of the digestive tract. Food intolerances do not usually cause as severe a reaction as food allergies, but they can cause nausea, vomiting, painful cramping, and diarrhea.

By Healthwise Staff
Primary Medical Reviewer E. Gregory Thompson, MD - Internal Medicine
Specialist Medical Reviewer Rohit K Katial, MD - Allergy and Immunology
Current as of March 12, 2014

WebMD Medical Reference from Healthwise

Last Updated: March 12, 2014
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.