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NMN / NAD+

NMN and NR are supplements meant to raise the molecule NAD+ in your cells. NAD+ is needed for energy and repair and declines with aging, which makes them popular in longevity circles.

NMN / NAD+ at a glance

WorksUnproven in humansPreliminary
TheoryNAD+ falls, topping up helps
EvidenceMostly mice
SafeSeems so short termPreliminary
86 studies16 answersupdated Nov 2026
All questions and research on NMN / NAD+ →NMN / NAD+: news and checked claims in your inbox →
Evidence per claim
Not yet proven effective in humans
View evidence →
Preliminary
NAD+ declines with age, topping up is the theory
View evidence →
Preliminary
Sirtuins, the intended target, are uncertain
View evidence →
Preliminary
Healthy aging is the real goal, not just longer
View evidence →
Moderate
Practical use

For whom

People who follow the newest longevity supplements and accept the uncertainty.

Not for whom

If you want proven effect: put your money on exercise, sleep and diet first.

Usual dose

No proven optimal dose in humans; use is experimental.

Key caveats

Lots of marketing, little hard human data; short-term safety seems okay but long term is unknown.

What we know, and don't

Known

NAD+ declines with age
Promising in animal studies
Short-term use seems safe

Not yet

Whether it makes humans healthier or live longer
The best form and dose
The long-term effects
Common misconceptions
"NMN is proven anti-aging."
Not shown. In humans that is not yet shown.Strong evidence
"More NAD+ is always better."
Incomplete. That is not proven and possibly not without risk.Preliminary evidence
Latest news on NMN / NAD+
NAD+ therapies need better cell-level targets to fight aging19 OctWoman dies after NAD⁺ infusion at wellness clinic29 JulNAD in the placenta sets when labour starts12 JunBoosting NAD+ works better when you also block its breakdown16 AprNAD+ combination treatment restores muscle and bone in old mice10 Apr
Heard on podcasts

What popular health podcasts claimed about NMN / NAD+, checked against the research.

Dr. Eric BergPartly
“Niacin raises blood NAD+ levels five to eight times, compared to twice as much with more expensive supplements such as NR and NMN.”
What the research says →
Dr. Eric BergDoes not hold up
“In healthy people, NAD+ levels remain stable as they age and do not decline.”
What the research says →
Dr. Josh Axe · Dr. Will ColePartly
“Substances such as urolithin A, PQQ, NAD+ and coenzyme Q10 support the health and functioning of mitochondria.”
What the research says →
NMN / NAD+: what's new, and what holds up

We follow the latest research on NMN / NAD+ and listen to leading health podcasts, and we check what they claim. You'll get one email on Thursdays with what matters, and only when there's something new.

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