I love the idea of starving the body of glucose, so the brain can signal that it needs the reserve of ketones. It seems to run parallel with the theory that if you rely less on carbs, then the body will burn up the fat, since it is going to need fuel. This could boost performance - physically and mentally. Perhaps, even lower insulin levels, regularize appetite, and enhance the body's immunity.
So, the ketogenic diet could be good. I have never tried it, but have no issues with anyone that wants to. At the end of the day, though, the best diet or weight loss mechanism is really the one you stick with it. As a holistic practitioner and vegan, I find that measures to lose weight, build muscle, or strengthen the body will only come about if consistency is applied.
Thanks for sharing. Cheers.