A food allergy is a sensitivity caused by a reaction of the body's immune system to specific proteins in a food. While food intolerances are food sensitivities that do not involve the individual's immune system.
A food allergy is a sensitivity caused by a reaction of the body's immune system to specific proteins in a food. Food allergy symptoms occur when the immune system decides that a protein in a food is harmful, and begins an attack when that food enters the body.
The most common food allergies are peanuts, tree nuts (such as almonds and walnuts), sesame seeds, milk, eggs, seafood (fish, crustaceans, and shellfish), soy, wheat, and sulfites (a food additive).
