Jude, can I ask, is this for similar benefits that the 5:2 promotes? Or other health benefits? I know I have been on the HCG diet and found I got used to not eating until lunchtime. Now, I love breakfasts again. Five hours is not long!!! I think I would be on a feeding frenzy We are getting into the swing of two fasting days a week. I am not losing weight, DH is, but have decided as long as I am not putting it on I am fine about that.