NAD+

Nicotinamide adenine dinucleotide (NAD+) is a coenzyme present in every living cell, essential to hundreds of metabolic processes. It plays a central role in converting nutrients into cellular energy, supporting DNA repair, and activating proteins involved in cellular stress response. NAD+ levels decline naturally with age, which has positioned it as a focal point of longevity and cellular health research over the past decade. It is particularly noted in literature for its role in activating sirtuins, proteins linked to aging, inflammation, and metabolic regulation, as well as its broader effects on mitochondrial function and genomic stability.