Evidence check: Nährstoffcheck in the context of allergy

A nutrient check (e.g., blood test for vitamins and minerals) is offered by MyBody-X as a 'Nährstoffmangeltest'. In the context of allergies, there is no robust evidence that such a check alone can diagnose an allergy or clarify its cause. While some observational studies suggest links between vitamin D or zinc deficiency and increased allergy risk, the evidence is heterogeneous and insufficient for clinical recommendation. Total IgE (see MyBody-X article on allergy values) is a non‑specific marker; a nutrient check does not replace specific allergy diagnostics (skin prick test, specific IgE). Moreover, elevated IgE can also be caused by parasites, smoking, or immune conditions. The evidence for a nutrient check in allergy is therefore 'unclear' – it is a marketing offering without direct clinical validation for this purpose. Anyone with genuine allergy symptoms should consult a physician rather than rely on a nutrient test.