Food Allergies

Foods are often blamed for presumed allergy symptoms, but in fact they affect only about 8% of infants and 2% of adults. 
Most food allergy in children is due to eggs, fish, milk, peanuts, soy and wheat. 
Most adult food allergy problems are due to fish, nuts, peanuts and shellfish.
Food-related problems that might have to be differentiated from true food allergy include:
Food intolerances due to enzyme deficiencies
Naturally-occurring food chemical reactions
Reactions to synthetic food additive chemicals
Food poisoning
Interactions between foods and medications
Stimulatory and depressant effects of certain ingestants
For additional information see “Food Related Headaches” and “Lactose Intolerance” in the Patient Literature section.
What is the oral allergy syndrome?
People with the oral allergy syndrome experience itching and swelling of their lips, tongue and throat when they eat certain fresh fruits and vegetables. The symptoms are due to cross-reactions between antigens in pollens and foods, and are most likely to occur when certain trees and weeds are pollinating. 
Symptoms are usually limited to annoying itching, tingling, and/or swelling of the lips, tongue and palate. But there is also the possibility of developing enough swelling of the throat to cause asphyxiation.