Tier B

NADH (Reduced Nicotinamide Adenine Dinucleotide)

Also known as: Reduced NAD · ENADA (stabilized NADH) · Coenzyme 1

1 PMID anchor · MITO · CNS · IMMUNE · Last reviewed 2026-06-08

Mechanism of action

  • Mitochondrial Complex I electron donor
  • Tetrahydrobiopterin recycling
  • Dopamine biosynthesis support
  • Cellular ATP production

Molecular + tissue targets

  • Mitochondrial electron transport chain
  • Dopamine biosynthesis pathway
  • Cellular bioenergetics

Dosage range

5-20 mg/day (Forsyth 1999 PMID 10071523 CFS RCT 10 mg/day · Birkmayer 2002 jet-lag 5 mg)

Safety notes

Generally well tolerated; long-term human safety beyond 6 months limited; NADH formulation stability requires enteric coating

Cross-market regulatory status

🇺🇸 FDA

DSHEA dietary supplement (since 1996)

🇪🇺 EFSA

Novel Food classification (case-by-case)

🇧🇷 ANVISA

RDC 243/2018 dietary supplement framework

Evidence anchors (PubMed) · 1

  • PMID 10071523 RCT positive outcome
    Forsyth LM et al. (1999) Ann Allergy Asthma Immunol
    Therapeutic effects of oral NADH on the symptoms of patients with chronic fatigue syndrome
    Canonical ENADA stabilized NADH 10 mg/d crossover double-blind placebo-controlled RCT · n=26 CFS patients · 8/26 (31%) responded favorably to NADH vs 2/26 (8%) placebo · verified 2026-06-07 · NOT PMID 10367612 (different paper Ambulatory blood pressure responses Psychosom Med 1999)

Common use cases

  • chronic fatigue syndrome (research context)
  • jet-lag cognition
  • cellular energy support
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