Can FADS1 help with longevity?

Whether FADS1 can help with longevity is not clearly supported by evidence. FADS1 encodes a delta-5 desaturase involved in omega-3 and omega-6 fatty acid metabolism. Some GWAS studies link FADS1 variants to inflammatory markers or lipid profiles, but direct effects on lifespan are minimal and not replicated. Consumer DNA tests like MyBody-X may include FADS1, but its predictive value for longevity is low. Longevity is determined by many factors: diet, exercise, stress management, sleep, and social connections. A single gene like FADS1 has no clinically relevant impact. Beware of marketing claims that overinterpret weak associations. A balanced diet with adequate omega-3s (e.g., from fish, flaxseed) is beneficial, but not because of FADS1.