Nicotinamide riboside, is an alternative form of vitamin B3, also called niacin Like other forms of vitamin B3, nicotinamide riboside is converted by the human body into nicotinamide adenine dinucleotide NAD, a coenzyme or helper molecule NAD is a crucial component of the basic biological processes that make life possible These processes are extremely important to human life because they are responsible for efficient cellular metabolism, reducing oxidative stress, and maintaining the healthy propagation of DNA to keep humans healthy longer