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Food Allergy

المؤلف:  Barry Chess

المصدر:  Talaros Foundations In Microbiology Basic Principles 2024

الجزء والصفحة:  12th E , P523

2026-11-09

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The ordinary diet contains a vast variety of compounds that are potentially allergenic. Al though food allergies have an intestinal mode of entry, they can affect the skin and respiratory tract as well. Gastrointestinal symptoms include vomiting, diarrhea, and abdominal pain. In severe cases, nutrients are poorly absorbed, leading to growth retardation and failure to thrive in young children. Other manifestations of food allergies include rashes, hives, rhinitis, asthma, and occasionally anaphylaxis. Classic food hypersensitivity involves IgE and degranulation of mast cells, but not all reactions involve this mechanism. The most common food allergens come from peanuts, fish, cow’s milk, eggs, shellfish, and soybeans.1 A recent investigation of babies who were considered at risk for peanut allergy concluded that eating a small amount of pea nuts early in life greatly reduced their developing sensitivity to pea nuts. Allergists are now thinking that in some cases, certain foods should be introduced earlier to prevent sensitization of children to that food.