the research has persuaded Sinclair to take an NAD+ supplement daily, 1,000 mg of an NMN formulation that is not yet commercially available. He also takes metformin, by the way, 1,000 mg per evening, and 500 mg of resveratrol (pterosilbene) every morning. My advice, based on what I’ve learned from the literature and from Sinclair himself, is to wait for the dust to settle on this whole NAD+ thing. If it becomes approved by the FDA as a drug, rather than a supplement, the purity will be tightly regulated, which it is not now—and it will have been shown to work in humans, not just mice.
