Home Ingredients NMN (Nicotinamide Mononucleotide)
EnergyMetabolic HealthLongevity

NMN (Nicotinamide Mononucleotide)

Evidence Level
Moderate
2 Clinical Trials
4 Documented Benefits
3/5 Evidence Score

NMN is a direct precursor to NAD+, a coenzyme essential for cellular energy production, DNA repair, and sirtuin activation. NAD+ levels naturally decline with age, and NMN supplementation is one of the most actively researched strategies for restoring NAD+ to support longevity and metabolic health.

Studied Dose 250–500 mg/day (commonly studied); up to 1,200 mg/day in clinical trials
Active Compound Beta-Nicotinamide Mononucleotide (NMN) — stabilized crystalline form

Benefits

NAD+ restoration

NMN is rapidly converted to NAD+ in cells, restoring levels that decline 40–50% between ages 40 and 60. Higher NAD+ supports mitochondrial efficiency, DNA repair, and metabolic signaling.

Supported by Trial 2, Trial 1

Metabolic health

Human trials show NMN supplementation improves insulin sensitivity, reduces liver fat, and improves skeletal muscle insulin signaling — effects mediated through NAD+-dependent SIRT1 activation.

Supported by Trial 1, Trial 2

Muscle function and endurance

RCT in older adults showed NMN improved muscle strength, walking speed, and grip strength over 12 weeks, with effects correlating with blood NAD+ increases.

Supported by Trial 1

Cognitive support

Preclinical studies show NAD+ restoration improves neuronal function, reduces neuroinflammation, and supports DNA repair in brain cells. Human cognitive trial data is emerging.

Supported by Trial 1, Trial 2

Mechanism of action

1

NAD+ biosynthesis via salvage pathway

NMN is phosphorylated by NMN adenylyltransferases (NMNATs) to directly produce NAD+. This bypasses rate-limiting steps in other NAD+ precursor pathways, making NMN one of the most efficient NAD+ boosters.

2

Sirtuin activation

Elevated NAD+ activates sirtuins (SIRT1–7), a family of NAD+-dependent deacetylases that regulate gene expression, mitochondrial biogenesis, inflammation, and stress resistance — key longevity pathways.

3

PARP-1 support for DNA repair

NAD+ is consumed by PARP-1 during DNA repair. Restoring NAD+ ensures adequate substrate for DNA damage repair, reducing genomic instability associated with aging.

Clinical trials

1
NMN for Muscle Function in Older Adults — RCT
PubMed

RCT in 42 older adults (65+) receiving 250 mg/day NMN vs placebo for 12 weeks. Outcomes: NAD+ metabolites, grip strength, walking speed, timed chair stand. (Yamane et al. 2022, GeroScience)

42 older adults aged 65+. 12-week intervention.

NMN increased blood NAD+ metabolites. Improved grip strength, walking speed, timed chair-stand test vs placebo. Note: small trial; first-generation human NMN data; effect sizes modest. NMN's evidence base is much smaller than NR's.

2
Oral NMN Safety and Pharmacokinetics in Healthy Men — First Human Trial
PubMed

First human clinical trial of oral NMN: single doses of 100, 250, 500 mg in 10 healthy men. Outcomes: blood NAD+ metabolites, vital signs, safety. (Irie et al. 2020, Endocr J)

10 healthy men. Acute single-dose PK.

All doses safely increased blood NAD+ metabolites within 2-3 hours. No adverse effects on vital signs or metabolic markers. Established baseline NMN safety. CRITICAL CAVEAT: very small trial (n=10), single dose — NOT efficacy data, just safety/PK.

Side effects and drug interactions

Common Potential side effects

Generally well-tolerated in clinical studies up to 1,200 mg/day
Mild nausea or GI discomfort reported by some users at higher doses
Long-term safety data in humans still accumulating — most trials are 12 weeks or less

Important Drug interactions

No established drug interactions — emerging safety data
Theoretically, may interact with medications metabolized through SIRT1/NAD+ pathways
Consult physician if taking immunosuppressants or chemotherapy agents

More Energy Ingredients

Energy
Caffeine
Caffeine, a natural stimulant found in coffee, tea, and other plants, is commonly suppleme…
Cognitive
Vitamin B12
Vitamin B12, also known as cobalamin, is a water-soluble vitamin commonly supplemented as…
Energy
Iron
Iron is an essential trace mineral and a central component of hemoglobin, enabling red blo…
Hydration
Glucose / Dextrose
Glucose (also called dextrose in its pure crystalline form) is the body's primary fuel sug…

Explore Other Ingredients

Cardiovascular
Omega-3 Fatty Acids
Omega-3 fatty acids, primarily eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), an…
Antioxidant
Setria® Glutathione
Setria® is Kyowa Hakko's patented reduced L-glutathione (GSH) produced via fermentation —…
Antioxidant
NAC (N-Acetylcysteine)
NAC (N-Acetyl Cysteine) is a supplemental form of the amino acid cysteine, best known for…

Frequently asked questions about NMN (Nicotinamide Mononucleotide)

What is the recommended dosage of NMN (Nicotinamide Mononucleotide)?

The clinically studied dose for NMN (Nicotinamide Mononucleotide) is 250–500 mg/day (commonly studied); up to 1,200 mg/day in clinical trials. Always follow product labeling and consult a healthcare provider for personalized dosing recommendations.

What is NMN (Nicotinamide Mononucleotide) used for?

NMN (Nicotinamide Mononucleotide) is studied for nad+ restoration, metabolic health, muscle function and endurance. NMN is rapidly converted to NAD+ in cells, restoring levels that decline 40–50% between ages 40 and 60. Higher NAD+ supports mitochondrial efficiency, DNA repair, and metabolic signaling.

Are there side effects from taking NMN (Nicotinamide Mononucleotide)?

Reported potential side effects may include: Generally well-tolerated in clinical studies up to 1,200 mg/day Mild nausea or GI discomfort reported by some users at higher doses Always consult a healthcare provider before starting any new supplement, especially if you have underlying conditions or take medications.

Does NMN (Nicotinamide Mononucleotide) interact with medications?

Known drug interactions may include: No established drug interactions — emerging safety data Theoretically, may interact with medications metabolized through SIRT1/NAD+ pathways Consult a pharmacist or healthcare provider if you take prescription medications.

Is NMN (Nicotinamide Mononucleotide) good for energy?

Yes, NMN (Nicotinamide Mononucleotide) is researched for Energy support. NMN is rapidly converted to NAD+ in cells, restoring levels that decline 40–50% between ages 40 and 60. Higher NAD+ supports mitochondrial efficiency, DNA repair, and metabolic signaling.