The Longevity Supplement Boom
The scientific excitement around aging biology — sirtuins, NAD+ metabolism, autophagy, and cellular senescence — has spawned a multibillion-dollar longevity supplement market. Compounds like nicotinamide mononucleotide (NMN), resveratrol, spermidine, and senolytics are marketed with the implicit promise of slowing aging itself. The underlying science is genuinely exciting, but a crucial gap separates promising mechanisms in mice from proven benefits in humans.
Examining the Frontrunners
NAD+ boosters like NMN and nicotinamide riboside reliably raise blood NAD+ levels in humans, and NAD+ declines with age — but no trial has yet shown that raising it extends healthspan or lifespan in people. Resveratrol generated enormous excitement after mouse studies but has repeatedly disappointed in human trials, plagued by poor bioavailability. Spermidine, which promotes autophagy, shows intriguing observational associations with longevity but lacks definitive randomized evidence. Senolytics that clear aged cells are perhaps the most promising frontier but remain investigational.
A Realistic Perspective
The honest assessment is that no supplement has been proven to extend human lifespan. The interventions with the strongest longevity evidence remain unglamorous: not smoking, regular exercise, quality sleep, a plant-rich diet, and maintaining social connection and muscle mass. Longevity supplements may eventually prove valuable, and the research deserves attention, but consumers should distinguish mechanistic plausibility from proven benefit. Facilities supporting patient nutrition can explore our nutritional products catalog for evidence-based options.
