The science, as we read it.
We don't manufacture research. We cite it, follow it, and try to report it honestly — including what's still uncertain.
The molecule
NAD+ (nicotinamide adenine dinucleotide) is a coenzyme in every living cell. It helps mitochondria convert food into ATP — the energy currency cells depend on.
NAD+ is also a substrate for enzymes called sirtuins and PARPs, which contribute to DNA repair and stress responses. In other words: it's upstream of many things.
NMN is one of the molecules the body can convert into NAD+. It sits one enzymatic step away. That's its appeal — and the reason researchers have studied it intensively in the last decade.
What research shows, so far
Rodent studies have consistently shown that NMN administration raises NAD+ levels and improves several age-related biomarkers. The consistency across studies is a meaningful signal.
Human research is younger and smaller, but the number of published trials has grown each year. Results so far suggest NMN raises circulating NAD+ at typical supplemental doses.
Most studies measure blood NAD+, muscle function, insulin sensitivity, and sleep quality. Subjective well-being is harder to measure — individual experiences vary widely.
Want to go deeper?
We summarize the papers we read in our Journal.
Understanding NAD+: The Coenzyme Behind Cellular Energy
NAD+ is everywhere in your body, and quietly essential to almost everything it does. Here's what it is, why levels decline with age, and why researchers are paying attention.
Read →NMN, NR, Niacin: Which NAD+ Precursor and Why
Three molecules, one goal: raising NAD+. But they get there differently, and the differences matter.
Read →What's still being studied
Optimal dosage. Most human trials use doses between 250 and 1,000 mg. Whether higher or lower is better, and for whom, is genuinely unsettled.
Long-term outcomes. NMN has been on the market since the late 2010s. Long-term data — in the decade-plus range — simply does not exist yet.
Individual response. Some people report noticeable energy or sleep improvements within weeks. Others notice nothing. Biology is variable in ways we're still learning to measure.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Individual results vary. Nothing on this page is medical advice. Consult a licensed healthcare provider before starting any supplement.