Risks and limits of IgE Allergie Kinder

IgE testing is the standard for diagnosing type I allergies in children, but it carries risks and limitations. A positive IgE result indicates sensitization, not necessarily clinical allergy. False positives can lead to unnecessary dietary restrictions, nutritional deficiencies, and anxiety. The oral food challenge remains the gold standard. IgE levels can change over time; many children outgrow allergies. Direct-to-consumer tests (e.g., MyBody-X) often measure IgG instead of IgE and are not validated for allergy diagnosis. IgE tests should only be interpreted by an allergist in the context of clinical history. Evidence: strong, but limits are well-documented.