In reply to AJM:
I definitely understand the sceptism with this kind of a diet, I was very sceptical myself for a long time when I read about them. I was interested in the stone age type of diet because potentially it makes sense that we should eat primarily what we evolved with, etc. But the more I've read about keto, particularly the genuine science, the more intrigued I've become.
I've tried loads of things over the years to improve at climbing and the vast majority of that time it's bean eat healthily, cut out the crap, don't drink too much, go running/do cardio and train. No doubt that this works very well, it has for me. These days however a knee injury stops me doing much running and three kids stop me doing much of anything a lot of the time so it seemed a good time to try this.
One of the first things you think about this diet is, it must be so "unhealthy" (judged from a traditional view of what that means), but I eat loads of fish, nuts and seeds, olives, green veg, avocado, as well as bacon and eggs, some red meat, etc. I'm definitely not a faddy diet person, I want something functional and despite what I've talked about on this thread I've only ever actually dieted for very short spaces of time over the years.
This diet has intrigued me though, and I'm glad I'm giving it a go so far. And yeah it's different but I don't mind that, different can be interesting, life's not about doing the same stuff all the time.