ist vollkornreis glutenfrei — which blood markers matter?

Yes, whole grain rice is naturally gluten-free because rice does not contain gluten. However, cross-contamination can occur during processing or packaging. For assessing gluten-related disorders, key blood markers include tissue transglutaminase antibodies (tTG-IgA) and endomysial antibodies (EMA) for celiac disease screening. Deamidated gliadin peptide (DGP) antibodies are also used. Total IgA should be measured to rule out IgA deficiency. Consumer DNA tests (e.g., MyBody-X) can detect HLA-DQ2/DQ8 risk variants, but these are not diagnostic—they only indicate genetic predisposition. Evidence for celiac blood markers is strong (human-strong), while DTC genetic tests for gluten sensitivity are often overhyped (marketing/unclear). Caveat: Do not start a gluten-free diet before proper medical testing, as it can skew results.