David Sinclair's blood biochemistry significantly improved after adding NMN and then Metformin, rectifying issues from poor diet, weight gain, lack of sleep, and stress.

“I was 48 and it spiked, my age went up, based on their inner age test. And then I changed my lifestyle, I started taking NMN, Metformin, and got that number, inner age, down to 31.4 in a matter of months.”

“So, I went on NMN and things were somewhat rectified. And then I added Metformin. And they really got back to my optimal.”