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NMN (Nicotinamide Mononucleotide)

A precursor to NAD+, the molecule your cells need for energy and repair — it's become one of the most hyped longevity supplements, and the early science is genuinely promising.

Benefits

  • +Boosts NAD+ levels, which decline with age
  • +May support cellular energy and metabolism
  • +Early evidence for improved insulin sensitivity
  • +Some research suggests support for cognitive function
  • +May support healthier aging at a cellular level
  • +Preliminary evidence for exercise performance

Dosage & Cost

Range250–500 mg/day
TimingMorning — some people take it on an empty stomach
Daily cost$1.00–$3.00

The science is exciting but still young — most studies are short-term. Quality varies a lot between brands, so look for third-party tested products. NR (nicotinamide riboside) is an alternative NAD+ precursor that's also well-studied.

Side Effects

  • !Generally well tolerated in studies so far
  • !Possible digestive upset or nausea
  • !May lower blood sugar slightly — relevant for diabetics on medication
  • !Long-term safety data is still limited — we're still learning
  • !Headache reported by some users

Food Sources

  • Cabbage
  • Broccoli
  • Tomatoes
  • Strawberries
  • Note: food sources contain tiny amounts — meaningful NMN doses require supplementation

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This page is for informational purposes only. The information here has not been evaluated by the Food and Drug Administration (FDA). No supplement discussed on this page is intended to diagnose, treat, cure, or prevent any disease. Please consult your doctor or a qualified healthcare professional before taking any dietary supplement.