I was hoping there was a thread on this. Found it really interesting and will be incorporating it into my lifestyle as an alternative to the fasting I currently do
About 10 years ago I went on a yoga retreat and fasted for 10 days, we were eating 250 calories per day max and it was all through liquid, a bit like the maple syrup diet I guess. I typically fast in the same way for 3 days every 3 months. I'm not surprised that people don't over indulge on the feast days because honestly when you start eating again even after fasting for 2 days you find yourself being really full and you can taste everything.
I took up doing the 3 days every 3 thing because I found it really helpful in re-balancing my eating habits. On eating after fasting everything tastes so much more strongly (fruit and veg is amazing) and so much more filling. I normally do it after going on holiday because where I over-indulge it helps me to get back to normal eating habits.
I have low blood pressure think around 100-80/60 and low cholesterol, in a family where everyone else is the opposite. I'm not someone who exercises massively or eats in a really healthy way and recently I did vegetarian low-carb to lose 10lbs, but I think its possible the fasting may have helped with my overall health.
Question I did have is, if he found that the benefits were equal when he fasted for 4 days and when he did 2 days non-consecutively over 5. Is there any evidence that there is extra benefits to fasting alternate days or is that putting yourself under unnecessary suffering. He has been answering lots on his twitter so I may ask him there.