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Certain persons have a true allergy to certain foods such as peanuts, mushrooms, seafood etc. Other persons have a sensitivity to substances in foods such as amines , salicylate or sulphide.
In the former case, the tiniest amount of food will cause the allergy.
In the latter case,(sensitivity), a certain level of the substance must be reached before the reaction occurs. This level may be cumulative over days and weeks.
Wiki User
∙ 14y ago
Wiki User
∙ 11y agoThe allergens in food are those components that are responsible for inciting an allergic reaction. They are proteins that usually resist the heat of cooking, the acid in the stomach, and the intestinal digestive enzymes. As a result, the allergens survive to cross the gastrointestinal lining, enter the bloodstream, and go to target organs, causing allergic reactions throughout the body. The mechanism of food allergy involves the immune system and heredity.
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