The Basics of Food Allergies

Food allergies are quite common and typically involve allergic reactions to peanuts, milk, eggs, shellfish, soy, or wheat, although other foods can also be allergens. An allergic reaction is essentially an overreaction by the immune system to a food; the immune system identifies the harmless substance as being a foreign invader.

You can watch this video or consult an allergy doctor to hear about the chemical changes in the body that occur during an allergic reaction. This video explains how a type of antibody called immunoglobulin E binds to immune cells. In the presence of the food allergen, immunoglobulin E triggers the immune cells to release histamine, which causes allergy symptoms. Anaphylaxis, a severe reaction, may also occur.

If you have food allergies, you can call Allergy & Asthma Specialistsâ„  at 1(800)86-COUGH to schedule an appointment with an allergist in Philadelphia, Blue Bell, King of Prussia, Jenkintown, Doylestown, Lansdale, Pottstown, or Collegeville, Pennsylvania. Our allergy specialists look forward to helping you live life well.

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