Myths vs facts: Fitness Vitality DNA and Allergie

Myths vs facts: Fitness Vitality DNA and Allergy. DNA tests for fitness and vitality claim to personalize training and nutrition based on genetic variants. The reality: most rely on SNPs with tiny effect sizes, often not backed by robust clinical trials. GWAS associations are not causation. For allergies: the MyBody-X AllergieCheck measures IgE antibodies but cannot diagnose food allergy or predict anaphylaxis. Many sensitized individuals have no symptoms. Conclusion: such tests are lifestyle products, not medical diagnostic devices. For real allergies or fitness goals, medical consultation is essential. Evidence grade: marketing/insufficient.