What to watch with DNA Stoffwechseltest and Allergie?

A DNA metabolism test analyzes genes involved in processing nutrients and drugs, such as CYP2D6, MTHFR, or COMT. For allergies, the predictive value is limited: such tests may indicate how you metabolize certain antihistamines (e.g., the CYP2D6*4 variant affects codeine efficacy and may also influence some antihistamines). However, they do not replace clinical allergy diagnostics (IgE tests, skin prick tests). Some companies market 'allergy DNA tests' with weak evidence – be wary of overblown claims. A link between histamine breakdown (DAO gene) and allergy symptoms is discussed but not well proven. Practical advice: if you take a metabolism test, consult a doctor or pharmacist before changing medications or supplements. For allergies, clinical symptoms and specific allergy tests remain key. The DNA test can be complementary, not diagnostic.