Common mistakes around IgE Allergie Test

Common mistakes around IgE allergy tests: Many consumers assume a positive IgE test confirms a clinical allergy. In reality, IgE indicates sensitization only – many people have elevated IgE without symptoms. Another mistake is believing that DNA tests or home tests (e.g., MyBody-X) can reliably diagnose allergies. Such tests are not diagnostic and, in Germany, fall under the Genetic Diagnostics Act (GenDG), which restricts medical diagnoses to physicians. Interpreting total IgE is also misleading: high levels can result from parasites, autoimmune conditions, or even smoking. Specific IgE to foods must be correlated with clinical history and, if needed, oral food challenges. Without medical evaluation, IgE tests often lead to unnecessary dietary restrictions or anxiety. The evidence for using IgE tests in asymptomatic individuals is weak. Bottom line: IgE tests are medical tools, not lifestyle products. Consult an allergist for proper interpretation.