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Food is eaten that an individual might be allergic to
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When the food allergen is eaten the first time, a IgE antibody attaches itself to cells found in the tissues in cells all over the body. Now the body is ready if the food allergen is eaten again.
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When the food allergy is eaten again, the allergen binds to IgE antibodies and sends out signals to release histamine.
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This histamine causes irritation and/or swelling in certain areas in your body.
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This is an food allergy