Nmn
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Evidence Summary
NMN is a precursor to NAD+ that research suggests can increase NAD levels and improve metabolic health. Evidence indicates potential benefits for glucose and lipid metabolism, insulin sensitivity, and physical function in older adults.
Evidence by Condition
NMN supplementation appears to improve glucose and lipid metabolism and increase muscle insulin sensitivity in prediabetic women.
In older adults, NMN has been shown to increase blood NAD levels, maintain walking speed, and improve sleep quality.
Research is investigating the impact of NMN on arterial stiffness and cardiometabolic function.
Effective Doses
Specific dose ranges were not explicitly provided in the source text.
Key Findings
- Increased blood NAD levels, maintained walking speed, and improved sleep quality in older adults (PMID: 38789831)
- Increased muscle insulin sensitivity in prediabetic women (PMID: 33888596)
- Meta-analyses suggest efficacy of NMN on glucose and lipid metabolism in adults (PMID: 39116016, PMID: 39531138)
Limitations
Many of the included studies utilized small sample sizes (e.g., N=24, N=25, N=60), and more large-scale research is needed.
Safety & Interactions
NMN has been studied for safety and efficacy in healthy middle-aged adults, but specific contraindications were not detailed in the provided research.
AI-generated summary from 8 peer-reviewed studies. Not medical advice. Always consult a healthcare provider.
Claims vs. Evidence
| Claim Type | % of Products | Evidence Required | Status |
|---|---|---|---|
| All Other | 100% | Tier D (Unclassified) | ✅ Supported |
| Structure/Function | 90% | Tier C (DSHEA Structure/Function (no pre-approval)) | ✅ Supported |
| Nutrient | 2% | Tier D (Unknown) | ✅ Supported |
Research by Topic
Research Evidence (8)
**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 review wit...
**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 adults in a do...
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. We conduc...
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 transferred...
**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 Controlled Trials. ...
**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 randomized, double...
**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
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Frequently Asked Questions
What is NMN and how does it work?
NMN is a precursor to NAD+, a molecule essential for cellular function. Research suggests that NMN supplementation can help increase NAD+ levels in the body to support metabolic health.
Can NMN help with blood sugar and metabolism?
There is moderate evidence that NMN can improve glucose and lipid metabolism. Specifically, studies have shown it can increase muscle insulin sensitivity in prediable women.
Does NMN help with aging and physical mobility?
There is moderate evidence that NMN can benefit older adults. Research indicates it may help maintain walking speed, improve sleep quality, and increase blood NAD levels.
Is NMN good for heart health?
There is currently insufficient evidence to determine if NMN benefits cardiovascular health. Ongoing research is investigating its impact on arterial stiffness and cardiometabolic function.
What is the recommended dose of NMN?
Specific effective dose ranges were not explicitly provided in the current research. You should consult a healthcare professional to determine an appropriate dose for your needs.
Is NMN safe to take and are there any side effects?
NMN has been studied for safety and efficacy in healthy middle-aged adults. However, specific side effects or contraindications were not detailed in the available research summary.
Are there any drug interactions or people who should avoid NMN?
There are currently no documented drug interactions for NMN. Because specific contraindications were not detailed in the research, individuals should consult a doctor to see if they should avoid use.
Answers generated from research evidence. Not medical advice.