What to watch with FADS1 and Langlebigkeit?

FADS1 (fatty acid desaturase 1) controls the conversion of plant-based omega-3 (ALA) into long-chain EPA and DHA. Variants in FADS1 (e.g., rs174537) alter enzyme activity and thus blood levels of these anti-inflammatory fats. For longevity, lower desaturase activity may lead to reduced EPA/DHA and higher inflammatory markers – both linked to accelerated aging. However, direct causal evidence for lifespan extension is limited. The effect is strongly modulated by diet: individuals with less efficient variants may benefit most from direct EPA/DHA intake (e.g., fish or algae oil). A DNA test alone provides only a hint, not a diagnosis. Other factors like microbiome, inflammation status, and lifestyle are equally important. The clinical relevance for longevity is currently moderate.