NMN stands for Nicotinamide Mononucleotide. It is a compound that plays a crucial role in cellular metabolism and is involved in the production of a molecule called nicotinamide adenine dinucleotide (NAD+). NAD+ is an essential coenzyme found in all living cells and is involved in various biological processes, including energy production, DNA repair, and gene expression.

NMN is a precursor to NAD+. When NMN is consumed, it is converted into NAD+ through a series of enzymatic reactions in the body. NAD+ levels tend to decline with age, and researchers believe that boosting NAD+ levels through NMN supplementation may have potential health benefits.