NAD stands for Nicotinamide Adenine Dinucleotide and is commonly referred to as NAD+. This molecule is a coenzyme present in the cells of all living organisms and plays a crucial role in health promotion and longevity, earning the nickname “anti-aging molecule.” NAD+ acts as a coenzyme of vitamin B3 and is involved in more biochemical reactions than any other vitamin-derived molecule. It plays a key role in transferring energy obtained from food throughout the body. This powerful molecule also holds significant potential for the development of new therapeutic approaches. Research indicates that NAD+ may help address aging, chronic diseases, and cognitive decline, and it is recognized as a critical factor for maintaining the health of internal organs and the nervous system.