Evidence check: VKORC1 in the context of Allergie

The evidence linking VKORC1 to allergies is very weak. VKORC1 encodes vitamin K epoxide reductase, an enzyme critical for blood clotting and warfarin metabolism. In allergy research, VKORC1 has no established role. Some studies have explored connections between vitamin K metabolism and immune function, but findings are inconsistent and mostly from mechanistic or GWAS approaches without replication. Consumer DNA tests that include VKORC1 variants typically do so for pharmacogenetics (e.g., warfarin dosing), not allergy risk. Therefore, any claim that VKORC1 influences allergies is speculative. For genetic allergy predisposition, better-supported genes include HLA, IL-13, and FCER1A. VKORC1 remains a research-only candidate with no clinical utility in this context.