What should I know about allergietest zum selber machen?

DIY allergy tests (blood, saliva, or DNA kits) are widely marketed but lack scientific validation as standalone diagnostic tools. DNA tests, such as those offered by MyBody-X, can identify genetic risk variants for conditions like atopic dermatitis – a recent GWAS (Martin et al., 2025) found associations, but individual predictive power is weak. These tests cannot replace clinical evaluation by an allergist. Established methods like skin prick tests or specific IgE blood tests remain the gold standard. Furthermore, many direct-to-consumer tests lack independent validation; results may be misleading and lead to unnecessary dietary restrictions or avoidance behaviors. For children with persistent allergic rash, a medical workup is essential to distinguish true allergies from other skin disorders. Although certain gene variants (e.g., in FLG) are linked to skin barrier dysfunction, the utility of a home test for allergy diagnosis is currently unproven. Bottom line: self-tests may satisfy curiosity but do not diagnose. Seek professional medical advice before taking any action.