Seems like a case of 'bandwagon jumping' after the massive popularity of Dr Michael Mosley's research on intermittent fasting, and his subsequent Horizon programme and book. I found those both informative and fascinating. This book covers the same topics but adds things such as juice fasting and the supposed benefits of colonic irrigation ...

I'm afraid this was not for me, and I skipped quite a bit of the text to look at the recipes. I prefer to read the original source material, written by a medical professional.

Review of a preview copy from the publisher.

This wasn't a cover-to-cover read, because the latter half contained recipes, and I skimmed or skipped parts that were either irrelevant (e.g., the parts about training while fasting and sections specifically for men) or already known to me.