Longevity DNA Test: which supplements make sense?

A longevity DNA test may identify genetic variants that influence nutrient needs, such as for vitamin D, B12, folate, or omega-3s. However, evidence that supplementing based on single genes meaningfully extends lifespan is weak. Most effects are small and overshadowed by lifestyle factors (diet, exercise, sleep). Consumer DNA tests are not diagnostic. Targeted supplementation only makes sense after blood testing and medical advice. Be cautious of exaggerated claims: longevity supplement science is still emerging. Evidence: marketing (many tests) + mechanistic (single variants).