NMN is an entirely natural compound found in our bodies. Various food sources also contain this compound in minuscule amounts. Edamame which has one of the higher contents, only show less than 1.9mg/100g. NMN is a direct and potent NAD+ supplement. Mice given an oral supplement of NMN showed increased liver NAD+ levels in just 10 minutes and showed an increase in muscle tissue by 30 minutes.Increased NAD+ levels stimulate energy DNA repair and SIRTUIN activity. SIRTUINS are the longevity-genes shown to be active during caloric restriction and life-extension in many animal models.