Food Allergy and Intolerance
Adverse reactions to foods can be divided into two major groups: food allergy, which depicts an immunologic, usually involving IgE, reaction to a food, and food intolerance, which involves all other adverse reactions, some of which are the result of unknown mechanisms, but none of which involve immune reactions (see Table 1). Food anaphylaxis is an IgE-mediated, generalized, clinical reaction to a food because of mast cell/basophil chemical mediator release after first sensitization and then re-exposure to the same food. Anaphylactoid reactions to a food or food additive clinically resemble food anaphylaxis, but do not involve IgE sensitization and are the results of direct chemical mediator release from the mast cell/basophil.
KeywordsAtopic Dermatitis Food Allergy Lactose Intolerance Attention Deficit Disorder Eosinophilic Gastroenteritis
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