Myths vs facts: NutriCare | INFINITY DNA-Test and Allergie

Myths vs. facts: NutriCare / INFINITY DNA test and allergies. These tests often claim to detect food intolerances or allergies solely through DNA analysis. Fact: True IgE-mediated allergies cannot be predicted by SNPs; standardized blood tests (specific IgE) or skin prick tests are required. Some DNA variants (e.g., HLA-DQ for celiac disease, LCT for lactose intolerance) have moderate evidence, but most commercial panels include markers with tiny effect sizes or purely mechanistic associations. IgG food sensitivity tests, often bundled, are considered invalid by clinical guidelines. The 'leaky gut' concept is not recognized as a clinical diagnosis by mainstream gastroenterology. Overall evidence for personalized dietary advice from DNA tests is weak to moderate (observational studies, no RCTs). Consumers should treat such tests as rough guidance, not medical diagnosis. Safety note: For genuine allergy symptoms (anaphylaxis, hives), a doctor visit is essential.