What should I know about lebensmittelunvertraglichkeit selbsttest?

Home food intolerance tests (e.g., IgG blood tests) are scientifically controversial. They measure IgG antibodies to foods, but these typically reflect normal immune exposure, not intolerance. Major allergy and immunology societies advise against such tests because they often lead to unnecessary dietary restrictions and potential nutrient deficiencies. The NutriCheck I test claims to cover up to 300 foods, but its clinical validity is weak. For true intolerances like lactose intolerance or celiac disease, specific medical tests (breath test, blood antibodies, biopsy) are required. Home microbiome tests can provide general diversity insights but cannot diagnose disease. Bottom line: these consumer tests may offer a starting point for dietary exploration, but they are not diagnostic. Always consult a healthcare professional for persistent symptoms.