wo allergietest machen — which blood markers matter?

The question of where to get an allergy test and which blood markers matter depends on the suspected condition. For classic IgE-mediated allergies (e.g., pollen, dust mites, pet dander), specific IgE (sIgE) blood tests or skin prick tests are the gold standard. These should be performed by an allergist, not by direct-to-consumer labs. For food allergies, oral food challenge remains the reference; sIgE can help but false positives are common. Crucially, IgG tests (e.g., NutriCheck) are not scientifically validated for food intolerance or allergy – they merely reflect exposure, not pathology (source: PMC12250233). For suspected histamine intolerance, DAO gene variants (from DNA tests) and DAO enzyme activity in blood can be considered, but evidence is moderate and supplements are unregulated (source: PMC11054089). In summary: for allergies, focus on sIgE markers and clinical evaluation; for histamine intolerance, DAO-related markers. Avoid IgG-based 'food sensitivity' panels – they are misleading. Evidence is mixed because standard allergy diagnostics are well-established, but many consumer tests lack validation.