Proof of what? I fully accept that this guy finds keto really helpful and I have made no effort to dispute that. There is a world of difference between "a thing that some people find helpful" and "an evidence-based clinical intervention".
>Just because there is no direct studies backing it up yet doesn't mean there isn't real effect.
The entire point of my comment is that the chance of there being a "real" effect (i.e. greater than placebo) is extremely low. That isn't the same as saying "this is definitely, 100% bogus".