[Nutrition in atopic diseases].

The incidence of food allergy in childhood is estimated with 5-20%. Food allergy can present with diarrhea, exanthems and dermatitis, wheezing bronchitis and as anaphylactic shock. The diagnosis of food allergy is possible with skin-test, RAST etc. and especially by provocation and food elimination. A food allergy, proven by elimination-diet and provocation-diet, can be treated with an individually composed diet. Such diets have to be balanced very exactly to avoid malnutrition.