ist reis glutenfrei — can a DNA test help?

Yes, rice is naturally gluten-free. It does not contain gluten because it is not one of the gluten-containing grains (wheat, rye, barley). A DNA test cannot change or confirm this fact – the gluten-free nature of rice is a botanical property, not a human genetic trait. However, a DNA test (e.g., for HLA-DQ2/DQ8) can provide information about your genetic predisposition for celiac disease or gluten sensitivity. So if you want to know whether your body tolerates gluten, a DNA test can offer a risk assessment – but not a diagnosis. The evidence for the genetic association with celiac disease is strong (human-strong), but the test is irrelevant to the question 'Is rice gluten-free?'. For a safe gluten-free diet in case of celiac disease or wheat sensitivity, medical evaluation (blood test, intestinal biopsy) is necessary. A DNA test does not replace this. Note: Processed rice products may contain gluten if contaminated – that has nothing to do with your genome.