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An enzyme called NNMT (nicotinamide N-methyltransferase) drains the NAD+ salvage pathway by methylating nicotinamide, one of NAD+'s precursors

The dose is measured in milliliters (mL) or micrograms (mcg)

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Declines in NAD + levels are associated with aging, metabolic dysfunction, and neurodegeneration, making NAD + replenishment and boosting strategies of growing scientific and clinical interest

There is evidence that low DHEA levels are linked to the beginning and progression of metabolic syndrome and diabetes mellitus, as well as a decrease in bone mineral density (88, 89)