wie viel kostet ein allergietest — which blood markers matter?

The question about the cost of an allergy test and which blood markers matter cannot be directly answered from the provided context, as the included documents (nutrient check, DNA fragments on MTHFR, TAS2R38, FADS1, APOA2, FUT4) do not describe an allergy test. Generally, an allergy test (e.g., IgE measurement) in Germany costs between 30–150 €, often as a self-pay service. Important blood markers include total IgE and specific IgE against individual allergens (e.g., pollen, foods). Eosinophils and tryptase may also provide clues. Without specific context data, the evidence level is 'unclear'. The mentioned DNA markers (MTHFR, FADS1, etc.) have no direct relevance to classic allergy tests. Please consult a physician for personal diagnostics.