Lay opinion vs evidence: IgE Allergie Kinder

The question of IgE allergies in children often pits lay opinion against scientific evidence. Laypeople frequently confuse IgE-mediated allergies (e.g., pollen, peanut) with non-allergic intolerances (e.g., lactose intolerance) or non-IgE-mediated immune reactions. The evidence here is strong: IgE allergies are confirmed by specific IgE antibodies via skin prick or blood tests (sIgE). In children, the natural history is important – many food allergies (milk, egg) are outgrown, while others (peanut, tree nuts) often persist. Lay opinions tend to overdiagnose allergies or rely on unvalidated tests (e.g., IgG panels). Guidelines recommend testing only with clear clinical suspicion and confirmation by an allergist. DNA tests for allergies are not yet sufficiently validated and should not be the sole basis for elimination diets in children. Caution is needed against overly restrictive diets that may impair quality of life or cause nutritional deficiencies. The evidence is strong for IgE-mediated pathophysiology but weak for routine genetic testing in pediatric allergy diagnosis.