Overview
NAD+ precursor similar to NR; bioavailability route debated.
- Trace in vegetables
- NMN powder/capsule
Mechanism of action
Direct precursor to NAD+ via NMNAT enzyme.
- · NAD+ salvage pathway
Effects on the body
Organ system effects
Improved aerobic capacity in older adults (Japanese trial).
Evidence-based benefits
Raises NAD+ in humans
Strong evidenceModest physical capacity improvement (small trials)
Limited evidencePotential side effects
- · NMN is generally well-tolerated at evidence-based doses
- · Mild GI discomfort (nausea, loose stools, or bloating) possible at higher intakes
- · Headache or transient fatigue reported by a small fraction of users
- · Allergic or hypersensitivity reaction (rash, itching, swelling)
- · Sleep disturbance if taken late in the day
- · Discontinue and seek medical advice if symptoms are severe, persistent, or include difficulty breathing
Drug interactions
Supplement interactions
- NAD+ precursor (NMN or NR)Complementary mitochondrial and sirtuin support.
- Omega-3Lowers inflammation and supports membrane integrity.
No specific avoidances listed.
Dosing & bioavailability
Where to buy
Affiliate links — we may earn a commission at no extra cost to you. Amazon code supplementsch-20 is auto-applied at checkout. We don't endorse specific brands; verify third-party testing (USP, NSF, Informed Sport) before purchase.
Third-party testedIndependently verified NMN — look for USP, NSF, or Informed Sport seals on the label for purity and dose accuracy.NMN third party tested NSF
CapsulesPre-measured NMN capsules — easiest for travel and consistent daily dosing without scoops or scales.NMN capsules
PowderBulk unflavored NMN powder — best cost-per-gram and flexible dosing for stacking or mixing into drinks.NMN powder unflavored
Best sellersMost-purchased NMN products on Amazon — a quick way to see what's reviewed widely before you commit.NMN best sellerScientific evidence9Show studiesHide studies
NMN on physiological function in older adults
Yoshino M, et al.
10-week RCT of NMN 250 mg in older women.
Improved muscle insulin sensitivity and remodeling.
PubMed: NMN — Raises NAD+ in humans
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PubMed: NMN — Modest physical capacity improvement
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PubMed: NMN — randomized controlled trial
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PubMed: NMN — dose response
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Google Scholar: NMN — clinical evidence
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