Is HLA-DQ2 useful for Langlebigkeit?

HLA-DQ2 is not a direct longevity marker. The variant is strongly associated with celiac disease, an autoimmune condition that, if undiagnosed/untreated, can lead to chronic inflammation, nutrient malabsorption, and increased mortality. Thus, a positive HLA-DQ2 result could indirectly benefit longevity if it prompts early diagnosis and a gluten-free diet. However, ~30 % of Europeans carry HLA-DQ2, yet only a minority develop celiac disease. The predictive value is low, and no robust studies show a direct link between HLA-DQ2 and extended lifespan. In nutrigenetics, HLA-DQ2 is often marketed as part of 'gluten sensitivity panels,' but clinical evidence for a general longevity recommendation is weak. A positive test alone does not justify a gluten-free diet without medical workup (antibodies, biopsy). From an evidence-based longevity perspective, better-validated markers like FOXO3 (rs2802292) or APOE4 are more relevant. Conclusion: HLA-DQ2 is not a longevity gene but a risk factor for a treatable condition – its utility for lifespan extension is indirect and context-dependent.