Nicotinamide adenine dinucleotide (NAD+) is a coenzyme found in all living cells and is essential for various biological processes, including energy metabolism, DNA repair, and cell signalling. As we age, NAD+ levels decline, which has been implicated in age-related health issues. Supplementation with NAD+ precursors, such as nicotinamide riboside (NR) or nicotinamide mononucleotide (NMN), has gained attention for its potential health benefits. These precursors can replenish NAD+ levels, supporting cellular function and potentially mitigating age-related decline. Some potential benefits of NAD+ supplementation include improved energy levels, enhanced cognitive function, and better metabolic health. Additionally, NAD+ has been studied for its potential role in promoting longevity, supporting cardiovascular health, and protecting against neurodegenerative diseases. Overall, NAD+ supplementation shows promise in promoting overall health and well-being