various supplement brands (inferred)
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“I take a precursor to NAD called NMN, and the body uses that to make the NAD molecule in one step.”— David Sinclair
“for myself and for my people, I supplement with NMN, which is the immediate precursor of NAD+”— Vonda Wright
“ANDREW HUBERMAN: How do you get NAD into your system? MARK HYMAN: I get 1,000 milligrams of NMN. ... Yeah.”— Mark Hyman