Is HLA-DQ2 useful for Darmgesundheit?

HLA-DQ2 is a genetic marker strongly associated with celiac disease, an autoimmune condition triggered by gluten that damages the intestinal lining. For general gut health, HLA-DQ2 is only useful if celiac disease is suspected. A positive result does not mean you will develop celiac disease; many carriers remain asymptomatic. Its clinical value lies mainly in ruling out celiac disease: absence of HLA-DQ2 makes celiac extremely unlikely. For other gut issues like irritable bowel syndrome or non-specific intolerances, this test is not informative. Direct-to-consumer tests often oversimplify results, leading to unnecessary dietary restrictions or anxiety. The evidence for the celiac association is strong (human studies), but its utility for general gut health is limited. Any symptoms should be evaluated by a physician.