wie testet man eine glutenunverträglichkeit — can a microbiome test help?

Testing for gluten intolerance (celiac disease or non-celiac gluten sensitivity) is clinical: celiac disease requires blood tests (tTG-IgA) and duodenal biopsy; non-celiac gluten sensitivity is a diagnosis of exclusion. A microbiome test cannot currently be recommended as a diagnostic tool for gluten intolerance. While some studies show gut microbiota alterations in celiac disease, these are non-specific and not clinically validated. Direct-to-consumer microbiome tests (e.g., MyBody-X) may offer mechanistic hints but lack diagnostic accuracy. They could serve as supplementary information but must not replace medical evaluation. Caution: starting a gluten-free diet without a confirmed diagnosis may cause nutrient deficiencies and complicate further testing. Evidence: unclear, as the provided context contains no specific data on gluten and microbiome.