What should I know about nahrungsmittel unvertraglichkeiten test?

Food intolerance tests, especially IgG-based blood tests, are widely marketed directly to consumers, but the scientific evidence for their accuracy is weak. Many of these tests measure IgG antibodies to foods, which typically reflect normal immune exposure rather than intolerance. Studies indicate high false-positive rates, leading to unnecessary dietary restrictions and potential nutrient deficiencies. The MyBody-X context does not describe specific intolerance tests; the available DNA and microbiome tests have limited clinical validity for this purpose. For genuine intolerances like lactose intolerance or celiac disease, validated medical tests exist (e.g., hydrogen breath test, tissue transglutaminase antibodies). A general 'food intolerance test' without medical supervision is not recommended. Evidence level: marketing/unclear. Safety note: Do not start restrictive diets based on such tests without consulting a doctor or dietitian.