I have done the fasting diet too, mostly to give support to my husband, but since Christmas and new year I thought I would visit it again. I started on Jan 1st with fasting. I can’t be bothered working out calories so I simply don’t eat on a Monday or a Thursday. The rest of the days I eat well but small portions. I found the last time I did this that when you do eat you are never as hungry and I find my mind is sharper, clearer. Of course I get hunger pangs, those are the hardest. Good luck to all starting it.