NMN (Nicotinamide Mononucleotide) is a naturally occurring compound involved in the production of NAD+ (nicotinamide adenine dinucleotide), a coenzyme essential for cellular energy production, DNA repair, and healthy aging processes. NAD+ levels naturally decline with age, which is why NMN supplements have gained attention in longevity and wellness research. Studies suggest NMN supplementation may help increase NAD+ levels and support metabolic health, physical performance, and cellular function, although long-term human evidence is still developing.

Natural food sources of NMN include: