How are HLA-DQ2 and Abnehmen related?

The relationship between HLA-DQ2 and weight loss is indirect and often misunderstood. HLA-DQ2 is a genetic marker strongly associated with celiac disease, an autoimmune condition triggered by gluten. Untreated celiac can cause malabsorption and weight loss. After adopting a gluten-free diet, weight often normalizes, and some individuals may even gain weight. For people without celiac disease, there is no robust evidence that HLA-DQ2 influences weight loss. Approximately 25–30% of the general population carry HLA-DQ2 without ever developing symptoms. A positive test does not predict one's ability to lose weight. Consumer DNA tests reporting HLA-DQ2 should not be used for diet or weight-loss advice. Clinically, the test is only used to rule out celiac disease when symptoms are present. For weight management, energy balance, macronutrient composition, and lifestyle factors are far more relevant than a single HLA allele.