Adverse reactions and intolerance to foods

Food allergy is a form of adverse reaction to food in which the cause is an immunological response to a food. Common food triggers are eggs, cow's mil k, peanuts and fish. Food allergy is most common in young infants, most of whom grow out of the allergy by the age of 5 years. The exception is allerg y to peanuts, which is life-long. The term food intolerance does not imply any specific type of mechanism, and is defined as a reproducible adverse re action to a specific food or food ingredient. Mechanisms for food intoleran ce comprise immunological reactions (i.e. food allergy), enzyme defects, ph armacological. effects, irritant effects, and toxic reactions. Despite the popular phobia of food additives and food processing, and the obsession for so-called natural foods, the greatest dangers come from naturally occurrin g foods and food ingredients.