With that being said, I know he's a (purportedly) prolific Stanford researcher of all healthy living things...nutrition, sleep, supplements and so on. He knows what he is talking about from what I have listened to.
We live in a society...blah blah, make a dollar blah blah. I highly doubt he's going out of his way to get people on things they shouldn't be on or claiming a supp. is something it is not.
But if he is blatantly endorsing garbage/pushing bullocks claims, that'd be beyond highly unethical and astonishing.