NAD+ (Nicotinamide Adenine Dinucleotide) is a crucial coenzyme found in all living cells, essential for energy production and metabolic processes. It plays a vital role in the mitochondria, facilitating cellular respiration and the production of ATP, the cell’s main energy currency. NAD+ is also involved in DNA repair, gene expression, and cellular signaling. As we age, NAD+ levels decline, leading to reduced energy production, impaired cellular functions, and increased susceptibility to age-related diseases. Boosting NAD+ levels through supplements like NMN and NR has shown promise in enhancing energy metabolism, promoting healthy aging, and improving overall cellular health.