The claimEvidence C · limited
NMN reverses aging
The evidence
Human RCTs only show NAD+ blood levels rise — zero data on clinical endpoints (lifespan / healthspan).
Why the claim spreads
Backed by charismatic longevity researchers and animal data; 'a molecule that reverses aging' is the ultimate aspirational pitch.
The mechanism, in brief
NAD⁺ (nicotinamide adenine dinucleotide) is one of the busiest 'electron carriers' in cell metabolism. It accepts electrons in the ETC to become NADH (covered in niacin-b3/nad earlier), but NAD⁺ has a second role: enzyme-reaction substrate — once cleaved, it's gone and must be re-synthesized.
Sources (2)
- Rajman, L., Chwalek, K., & Sinclair, D. A. (2018). Therapeutic potential of NAD-boosting molecules: the in vivo evidence. Cell Metabolism, 27(3), 529-547.
- Camacho-Pereira, J., Tarragó, M. G., Chini, C. C. S., et al. (2016). CD38 dictates age-related NAD decline and mitochondrial dysfunction through a SIRT3-dependent mechanism. Cell Metabolism, 23(6), 1127-1139.