By middle age, the body’s NAD+ levels have fallen to half their youthful levels. Declining NAD+ is a known factor in many metabolic and age-related health problems, contributing to underlying conditions, such as muscle and hearing loss, fatigue, and cognitive decline. As a direct precursor to NAD+, supplementing with ɴmɴ helps replenish age-related declines and support mitochondrial health. Unlike other active B3s, such as niacin and nicotinamide riboside (NR), ɴmɴ is rapidly converted to replenish NAD+ whole blood levels and has a greater range of activities in the body.