What should I know about zoliakie und glutenunvertraglichkeit?

The provided knowledge context does not contain specific information on celiac disease or gluten intolerance. Therefore, I can only offer general medical knowledge: Celiac disease is an autoimmune condition triggered by gluten, leading to intestinal damage. Diagnosis relies on serology (tTG-IgA) and duodenal biopsy. Non-celiac gluten sensitivity (NCGS) is less well-defined and diagnosed by exclusion. Consumer DNA tests claiming to detect 'gluten intolerance' via single gene variants (e.g., HLA-DQ2/DQ8) are often misleading: HLA types are necessary but not sufficient for celiac disease. Most people with these variants never develop the condition. Without medical evaluation, a gluten-free diet should not be started, as it can interfere with diagnosis. Evidence: unclear (no direct sources in context). Safety note: If celiac disease is suspected, seek proper medical diagnosis.