wie viel kostet ein allergietest beim hausarzt — which blood markers matter?

The question about the cost of an allergy test at a GP and which blood markers matter cannot be answered from the provided context. The articles cover gut microbiome tests, DNA metabolism analyses, and individual gene variants (FUT2, TCF7L2), not allergy diagnostics. In general: an allergy test at a GP (e.g., total IgE or specific IgE to common allergens) in Germany costs between €20 and €100 as a self-pay service; if medically indicated, statutory health insurance covers it. Key blood markers include total IgE, specific IgE (e.g., against pollen, dust mites, foods), and possibly eosinophil count. A positive test alone does not confirm allergy – clinical symptoms and possibly provocation tests are essential. Evidence for genetic allergy tests (e.g., FUT2 variants) is weak; they do not replace medical diagnosis.