ist reis glutenfrei? — can a DNA test help?

Yes, rice is naturally gluten-free. Gluten is a protein found in wheat, barley, rye, and their hybrids – not in rice. However, processed rice products (e.g., rice flakes, rice cakes, ready meals) may be cross-contaminated with gluten, so individuals with celiac disease or gluten sensitivity should look for 'gluten-free' labeling. A DNA test can help by identifying genetic risk variants for celiac disease (HLA-DQ2/DQ8). Carrying these variants increases risk but does not diagnose the condition. The test does not measure gluten content in food. The evidence for the genetic link is human-strong (large GWAS and clinical studies), but predictive power is limited because environmental and immune factors are major contributors. A DNA test cannot replace medical diagnosis (e.g., antibody testing, intestinal biopsy). For the question 'Is rice gluten-free?' the answer is clearly yes – a DNA test is not needed for that, but it can assist in personal risk assessment.