Myths vs facts: Nährstoffcheck and Allergie

Myths vs. facts: Nutrient test and allergy. A common myth is that a nutrient blood test (e.g., from MyBody‑X) can reliably detect allergies or food intolerances. **Fact:** Such tests only measure the concentration of certain vitamins, minerals, and trace elements in capillary blood – they are not designed to diagnose allergies or intolerances. Allergies are confirmed by specific IgE antibodies or provocation tests, intolerances often by lactose/fructose breath tests. Another myth: Nutrient deficiency causes allergies. Deficiencies (e.g., vitamin D, zinc) can modulate the immune system, but they are rarely the sole cause. Evidence for a causal link is moderate to weak. Anyone with genuine allergy symptoms should see a doctor for specific allergy testing. A nutrient check can be useful to identify deficiencies, but it does not replace allergy diagnostics. Results are screening-level and require medical interpretation.