Evidence check: VDR in the context of Allergie

The Vitamin D Receptor (VDR) is often discussed in allergy contexts because vitamin D modulates immune function, and VDR polymorphisms may influence allergic responses. Studies have linked certain VDR variants (e.g., FokI, TaqI) to asthma, atopic dermatitis, or hay fever risk, but results are inconsistent. Evidence is mostly mechanistic (cell/animal studies) and from GWAS with small effect sizes. For consumer DNA tests like MyBody-X, no specific VDR markers are included in the provided context; clinical utility remains unclear. A vitamin D deficiency should be addressed by a physician, but genotyping alone is not recommended for allergy prediction.