Food allergies affect about 6 to 8 percent of children. The most common food allergens are milk, egg, soy, wheat, peanuts, tree nuts, fish and shellfish. Food allergies should be differentiated from an intolerance. Intolerance can be caused by deficiencies of enzymes that causes inability to digest the food.
Allergic reactions are caused by having a specific antibody (Immunoglobulin E) to the particular food.
All patients with severe food allergies should have Epipen/Auvi-Q on hand.
Diagnostic tests: Skin tests or blood tests (immunocap) can be performed.