Abstract

Immunologic reactions to food, primarily in the form of IgE-mediated hypersensitivity, can result in asthma. Although the exact prevalence is unknown, approximately 6% to 8% of asthmatic children experience food-induced symptoms. Fatal and near-fatal allergic reactions to foods occur primarily in allergic-asthmatics. Food-induced allergic reactions can also increase nonspecific airway reactivity in a subset of allergic-asthmatics, potentially contributing to symptoms of chronic asthma. The diagnosis of food-induced asthma and the subsequent identification and elimination of causative foods requires a careful history, laboratory evaluation and, in many cases, confirmation by challenge testing.

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