Nicotinamide Riboside (NR) is a form of vitamin B3 that plays a crucial role in cellular metabolism. It is a precursor to NAD+, a coenzyme essential for energy production and various biological processes. NR is found in small amounts in foods like milk and yeast, and it is also available as a dietary supplement. Research suggests that Nicotinamide Riboside may support healthy aging and improve metabolic health by boosting NAD+ levels in the body. Increased NAD+ can enhance cellular repair, promote energy production, and potentially improve overall health and longevity.