💊 What it does
NMN (nicotinamide mononucleotide) is a direct precursor to NAD+ (nicotinamide adenine dinucleotide) — a coenzyme central to energy metabolism, DNA repair, gene expression, and cellular stress resistance. NAD+ levels decline with age, and this decline is associated with reduced mitochondrial function, increased inflammation, and accelerated ageing processes. NMN supplementation has shown promise in animal studies for extending healthspan and reversing aspects of metabolic ageing. Human trials are now emerging, with early results suggesting improvements in muscle strength, energy metabolism, and sleep quality in older adults.
👤 Who needs it
People interested in longevity and healthy ageing. Older adults experiencing energy decline and reduced exercise capacity. Those with metabolic syndrome or insulin resistance. Researchers and early adopters in the longevity supplement space. Note: the human evidence base is still developing — manage expectations and be aware this is frontier science.
🥦 Food sources first
NMN is found in small amounts in edamame, broccoli, avocado, tomatoes, mushrooms, and cucumber. Dietary sources provide nanogram amounts — far below supplement doses. No practical food-based way to achieve supplement-level NMN intake.
🗓 When to supplement
For people actively focused on longevity protocols and willing to experiment with emerging evidence. Not a validated treatment for any condition. Best considered alongside lifestyle measures (caloric restriction, exercise, sleep, stress management) that are far better evidenced for longevity.
🏷 Best form to look for
Sublingual NMN may have superior bioavailability to standard capsules. Liposomal NMN also enhances absorption. NR (nicotinamide riboside) is a related NAD+ precursor that is more extensively studied in humans to date.
⏰ When to take it
Morning is conventional. Often combined with resveratrol and pterostilbene in longevity protocols based on proposed synergistic mechanisms.