Nicotinamide mononucleotide (NMN)

Nicotinamide mononucleotide (NMN) is a NAD+ precursor sold as a supplement and promoted for slowing aging and extending lifespan. Human studies have not shown convincing benefit for this use, and there is no evidence base for anti-aging or longevity. The substance itself is well tolerated in this role. What actually affects biological aging is the ordinary stuff: not smoking, regular physical activity, decent sleep, and keeping blood pressure, glucose and lipids in check.

NMN (nicotinamide mononucleotide) is a NAD+ precursor sold as a supplement for energy, recovery, and athletic endurance. Convincing human evidence that NMN improves endurance or performance is lacking: the trials are small and inconsistent. Endurance responds more reliably to consistent aerobic training, enough sleep, and solid nutrition, and NMN does not replace any of that.

Nicotinamide mononucleotide (NMN) is a NAD+ precursor marketed as an anti-fatigue and energy supplement. For chronic fatigue it has not shown convincing benefit: there is no solid evidence for this use. What actually helps is finding and treating the cause of the tiredness (sleep, iron and vitamin D deficiencies, thyroid problems, depression), and chronic fatigue syndrome is managed with paced activity and supportive care under medical supervision. Do not take NMN instead of an approach with proven benefit, so you don't miss the treatment you need.

ICD-10: R53 · ICD-11: MG22

Nicotinamide mononucleotide (NMN) is a precursor of the coenzyme NAD+, sold as a supplement for memory, focus and "brain rejuvenation". For memory and concentration the benefit has not been proven: there is no good evidence base for this use. Taken this way, NMN is well tolerated and carries no serious risk. What actually helps cognition is sleep, physical activity and treating the underlying cause of the complaints, whether vitamin B12 deficiency, depression or a sleep disorder