MyBody-X angle on IgG Unverträglichkeit Check

The MyBody-X IgG intolerance check lacks scientific validation as a reliable diagnostic tool for food intolerances. IgG antibodies to foods are a normal immune response and do not indicate clinical intolerance. Studies show these tests often yield false positives, leading to unnecessary dietary restrictions. Major allergy and immunology organizations (e.g., EAACI, AAAAI) explicitly recommend against using IgG tests for food intolerance diagnosis. True intolerances—such as lactose intolerance, fructose malabsorption, or celiac disease—require validated methods like hydrogen breath tests, duodenal biopsy, or genetic markers (e.g., rs182549 for lactase persistence). MyBody-X may market this test as part of a wellness panel, but the evidence base is weak. Consumers should not alter their diet based on such results without consulting a physician. The test is best categorized as marketing-driven, not evidence-based.