Nmn
Also known as beta-nmn, nicotinamide mononucleotide, nmn
Key takeaways
- Oral NMN supplementation shows efficacy in improving glucose and lipid metabolism (PMID: 39116016).
- NMN ingestion increased blood NAD levels, maintained walking speed, and improved sleep in older adults (PMID: 38789831).
- NMN may increase muscle insulin sensitivity in prediabetic women (PMID: 33888596).
What the research shows
AI-synthesized from 8 peer-reviewed sources · Updated 2025
Nicotinamide mononucleotide (NMN) is a precursor to NAD+ used to support metabolic health and aging. Current research suggests it may improve glucose metabolism, insulin sensitivity, and physical function in adults, though large-scale data is still emerging.
By condition
General Metabolic Health
Moderate
Meta-analyses and RCTs indicate NMN may improve glucose and lipid metabolism in adults.
Age-related Physical Function
Weak
Small-scale evidence suggests NMN may help maintain walking speed and improve sleep quality in older adults.
Prediabetes
Weak
Preliminary evidence suggests NMN increases muscle insulin sensitivity in prediabetic women.
Effective doses
Specific dose ranges were not detailed in the provided abstracts, though studies utilized dose-dependent clinical trial designs.
Safety & interactions
Generally reported as safe in healthy middle-aged adults, but specific contraindications were not listed in the provided abstracts.
Limitations
Most studies have small sample sizes (e.g., N=24 to 60) and short durations, requiring larger, long-term trials to confirm efficacy.
Top-rated Nmn products
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How it's sold
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Research evidence
Showing top 10 of 8 sources, sorted by quality
**Zhang et al., 2025** | Crit Rev Food Sci Nutr | Meta Analysis Zhang Jiaqi, Poon Eric Tsz-Chun, Wong Stephen Heung-Sang. Efficacy of oral nicotinamide mononucleotide supplementation on glucose and lipid metabolism for adults: a systematic …
**Morifuji et al., 2024** | Geroscience | Rct Morifuji Masashi, Higashi Seiichiro, ... Nagata Masashi. Ingestion of β-nicotinamide mononucleotide increased blood NAD levels, maintained walking speed, and improved sleep quality in older adul…
In rodents, obesity and aging impair nicotinamide adenine dinucleotide (NAD+) biosynthesis, which contributes to metabolic dysfunction. Nicotinamide mononucleotide (NMN) availability is a rate-limiting factor in mammalian NAD+ biosynthesis.…
In animal studies, β-nicotinamide mononucleotide (NMN) supplementation increases nicotinamide adenine dinucleotide (NAD) concentrations and improves healthspan and lifespan with great safety. However, it is unclear if these effects can be t…
**Chen et al., 2024** | Curr Diab Rep | Meta Analysis Chen Feng, Zhou Disheng, ... Hui Lai Ling. Effects of Nicotinamide Mononucleotide on Glucose and Lipid Metabolism in Adults: A Systematic Review and Meta-analysis of Randomised Controlle…
**Katayoshi et al., 2023** | Sci Rep | Rct Katayoshi Takeshi, Uehata Sachi, ... Tsuji-Naito Kentaro. Nicotinamide adenine dinucleotide metabolism and arterial stiffness after long-term nicotinamide mononucleotide supplementation: a randomiz…
**NCT ID**: NCT04910061 **Phase**: NA **Status**: COMPLETED **Enrollment**: 24 **Completion**: 2023-03-01
**NCT ID**: NCT03151239 **Phase**: NA **Status**: COMPLETED **Enrollment**: 25 **Completion**: 2021-06-30
Frequently asked questions
What is NMN and what is it used for?
Nicotinamide mononucleotide (NMN) is a supplement used as a precursor to NAD+ to support metabolic health and aging. Current research suggests it may help improve glucose metabolism, insulin sensitivity, and physical function in adults, though large-scale data is still emerging.
Does NMN work for metabolic health?
There is moderate evidence indicating that NMN may improve glucose and lipid metabolism in adults, based on meta-analyses and randomized controlled trials. Oral supplementation has shown efficacy in these areas, but more research is needed to confirm long-term benefits.
Can NMN help with prediabetes?
Evidence for NMN in prediabetes is currently weak, though preliminary studies suggest it may increase muscle insulin sensitivity in prediabetic women. Because the research is limited, individuals with prediabetes should consult a healthcare provider before using NMN as a treatment.
Does NMN improve physical function in older adults?
Research on NMN for age-related physical function is weak, with small-scale studies suggesting it may help maintain walking speed and improve sleep quality in older adults. The evidence is not yet strong enough to make definitive claims about its effectiveness for this purpose.
Is NMN safe to take?
NMN is generally reported as safe in healthy middle-aged adults, but specific contraindications were not listed in the provided abstracts. Individuals who are pregnant, nursing, or have underlying health conditions should consult a healthcare provider before use.
Does NMN have any drug interactions?
No drug interactions have been documented for NMN in the available evidence. However, because specific safety data is limited, it is important to consult a healthcare provider to ensure it is safe for your individual health profile.
What is the effective dose of NMN?
Specific dose ranges were not detailed in the provided evidence summary, though studies utilized dose-dependent clinical trial designs. Consumers should consult a healthcare provider for personalized dosage recommendations.