•  
  •  

Food Allergy

A food allergy is an abnormal response to a food by your immune system. A food allergy may cause itching and swelling; red, raised skin bumps (hives); wheezing or trouble breathing; and in rare cases, severe anaphylaxis, which can be life-threatening.

True food allergies are rare. Most reactions to foods are caused by food intolerances, reactions to food additives, or food poisoning. Food allergies are most common in children, but most children outgrow food allergies within a few years.

Foods that most often cause allergic reactions are:

  • Peanuts.
  • Tree nuts such as walnuts and almonds.
  • Shellfish and fish.
  • Eggs.
  • Wheat.
  • Soy products.
  • Milk.

Last Revised: March 10, 2011

Author: Healthwise Staff

Medical Review: Sarah Marshall, MD - Family Medicine & Rohit K Katial, MD - Allergy and Immunology

This information does not replace the advice of a doctor. Healthwise, Incorporated disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. How this information was developed to help you make better health decisions.

To learn more visit Healthwise.org

© 1995-2012 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.