NMN vs Metformin
Head-to-head comparison of NMN (Nicotinamide Mononucleotide) and Metformin (Metformin Hydrochloride) — benefits, dosing, side effects, research data, and where to buy.
| Property | NMN | Metformin |
|---|---|---|
| Category | Anti-Aging | Anti-Aging |
| Full Name | Nicotinamide Mononucleotide | Metformin Hydrochloride |
| Molecular Weight | 334.22 Da | 165.63 Da |
| Half-Life | N/A | 4-8.7 hours |
| Amino Acids | N/A | N/A |
| Typical Dose | 250-1000 mg/day | 500-2000 mg/day |
| Route | Oral | Oral |
| Purity | ≥98% | ≥98% |
| Studies Count | 300 | 4000 |
| Research Status | Clinical | Clinical |
NMN Benefits
- ✓NAD+ support
- ✓mitochondrial function
- ✓DNA repair support
- ✓metabolic resilience
Metformin Benefits
- ✓AMPK activation
- ✓improved insulin sensitivity
- ✓reduced oxidative stress
- ✓population-level longevity signal
NMN Dosing
250-1000 mg/day oral|single or divided doses|daily supplementation in studies
Metformin Dosing
500-2000 mg/day oral|start low and titrate in trials|taken with meals
NMN Side Effects
- ⚠nausea
- ⚠headache
- ⚠GI discomfort
- ⚠flushing
Metformin Side Effects
- ⚠gastrointestinal upset
- ⚠vitamin B12 reduction
- ⚠diarrhea
- ⚠rare lactic acidosis
Research Overview
NMN
NMN has a substantial preclinical and growing human literature centered on raising NAD+ levels. Research is strongest for biomarker changes and metabolic endpoints, while long-term aging outcomes remain under investigation.
Metformin
Metformin has extensive human data and remains a leading candidate in geroscience research. Observational and mechanistic studies suggest it may influence pathways tied to aging, though definitive anti-longevity proof in healthy humans is still lacking.
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