Nicotinamide mononucleotide (NMN) is a precursor to nicotinamide adenine dinucleotide (NAD+), a compound in your cells that is necessary for many functions. Taking an NMN supplement may increase NAD+ and support overall health and anti-aging.1 NAD+ levels naturally decline with age, which can increase the risk of age-related diseases like type 2 diabetes and Alzheimer's disease.
