He's going about this in the least scientific way, though. When n=1 and he has a million confounding variables, it reads more like fear of his own mortality than a meaningful research project. And this is a business for him now, he sells supplements through his Blueprint program.
What he did is filtering through all the noise and getting straight to the point, doing what he believes no one else has done and leading by example. We can argue about ethical and non conventional ways ofc that need to be optimized. The noise like this post comments will always be there, but doesn´t really matter actually :). Then being jealous or "skeptic" because he made some money out of it, it is nonsense. An example: most people die because vitamins, minerals, amino acids deficiency every day (an easy one is vit D). How is that bad, Informing and providing them with the solution? (ignorance at it´s finest). Reminds me of how ancient people was burning a "witch" cause knew how to heal with herbs.