There's a lot of talk about NMN and NR (precursors for NAD+) within the longevity space. Learn the differences between NMN and NR and which one is right for you. 

The main role of vitamin B3 is to make NAD molecules. This is important because the NAD molecule sits at the crossroads of mitochondrial energy production (i.e., ATP), cellular repair and signaling, and cellular defenses. Unfortunately, NAD+ levels decrease with age. This is the bad news. The good news is that there are strategies that can be used to make more NAD+. One of these is vitamin B3.