Nicotinamide mononucleotide (NMN) is a derivative of the B-vitamin niacin that dramatically improves health and longevity by serving as a precursor to NAD+, a compound that plays a crucial role in energy production, metabolism, and gene expression in the body. When we boost NMN levels in the body, we can enhance the biosynthesis of NAD+ and alleviate symptoms associated with depletion of this crucial nutrient. In fact, NMN supplementation has been found to improve various parameters of health, including physical endurance and muscle strength, brain health, heart health, body weight, and gene expression.