Risks and limits of IgE Allergie Test

IgE allergy tests measure specific immunoglobulin E antibodies to allergens. However, a positive result indicates sensitization, not necessarily clinical allergy. Up to 30 % of the population show sensitization without symptoms. Key limitations include high false-positive rates and poor correlation with symptom severity. Standard panels cover only common allergens, missing rare or cross-reactive ones. Risks arise from misinterpretation: individuals may start unnecessary elimination diets, risking nutrient deficiencies, or avoid safe foods. In Germany, the Genetic Diagnostics Act (GenDG) requires medical supervision if the test is considered genetic. MyBody-X does not offer diagnostic IgE tests; its products are lifestyle-oriented. For accurate allergy diagnosis, clinical correlation (prick test, provocation, history) by an allergist is essential. Evidence: practice/expert consensus.