What role does DNA Stoffwechseltest play in Langlebigkeit?

The role of a DNA metabolism test in longevity is scientifically very limited. These tests analyze single genetic variants linked to energy metabolism or nutrient processing (e.g., FTO, PPARG, TCF7L2). However, the effect sizes are small – FTO explains less than 2% of weight variance. No randomized controlled trials show that DNA-based dietary advice significantly extends lifespan. Longevity is influenced by a complex interplay of genetics, epigenetics, lifestyle, environment, and chance. A DNA test can offer rough hints, such as a tendency toward insulin resistance or folate metabolism, but direct prediction of life expectancy is not supported by evidence. Marketing claims often overstate the impact. Consumers should view such tests as one small piece in a broader health puzzle, not a longevity roadmap.