This is set up as kind of a beginner's guide to fasting...but some of his suggestions and information is just wrong when it comes to traditional fasting. The real kicker is that he doesn't actively cite as you go along, but provides you with a list of random website he used to make up his book, BUT MOST, if not all, OF THEM WOULD NOT BE CONSIDERED A CREDIBLE RESOURCE IF YOU CITED THEM FOR A PAPER! So why is it being used in a 'health book'? I use that term very loosely, hence ' '.
Also, who edited this book? There's spelling mistakes in it and it's repetitive (100 pages long and it's repetitive. Let's reflect on this for a moment). It's like this book was slapped together using blog and magazine info over the years, got some non-credible sources slapped on a list to cover his butt even though he has cited exactly 0% in his actual book. Therefore, plagiarism could be a serious factor. However, no one is paying me to check, so I'm not going to. lol
Then we get into some of the fasting stuff. The majority of this info isn't too far off the mark, or is flat out correct, but there are little things that bug me. Like reading the recipes for a regular week of fasting. They are 100% not anything I could live off of long term and I shouldn't. The point of fasting is mostly to delay, not deny. My thought processes is you can eat what you want, but with a smaller window therefore you won't be eating as much of it and will naturally start trying to prioritize what you want to put into your body. Assuming you're not all about shoving in ALL the candy while you still can. You know, eat that salad and small side of pasta, cause pasta is my Achilles heel, but then feel less guilty about that one scoop of ice cream you have for dessert.
Why? Because for me narrowing down my window to 6 hours automatically cuts out one meal and one snack (I was doing 21 Day Fix for the longest time without the best results and I was ALWAYS hangry). Couple that with the work week having me eat lunch at the start of my window, then leaving the major of my window an 'no eating' zone due to where I work. Then when I get home I have just enough time to make and eat dinner, maybe have a scoop of ice cream or a handful of peanuts before my window closes and I'm done for the day. Automatically I have cut out at least 300+ calories out of my day when compared to my previous eating habits. We're talking pre-Fix days here. Fix days were rabbit food days and I'm never going back!
This book, however, is all about the denying. Eat two large crackers (at least I think that's what those things are) and some hummus for dinner with some vegetables...uh no thanks. I didn't abstain from eating for 18 hours to eat a couple of crackers and hummus for dinner. It's also been shown in some recent studies that heavily restricting calories over long periods of time actually impedes weight loss as your body begins to believe you're living through a potential famine or something and beings slowing things down.
Anyhow, yes you'll probably lose weight faster fasting AND dieting at the same time (which is what I perceive this book to be about. BUT you won't be doing a healthy thing if you follow a diet like this one long term. Not only that, but you'll probably be setting yourself up to fail. Whether it be falling of the fasting wagon because you're bloody hungry all the time and going back to you old ways, or falling the other direction and into something more serious.
Final Thought
I just don't feel like this book is a good representation of what fasting is supposed to look like and I don't think living off of the example meals is a healthy thing long term. I think if you have the will power, it's a powerful short term solution (that I wouldn't recommend) and easing up into a properly balanced diet with intermittent fasting to maintain could be a thing, but why torture yourself when you could just do proper intermittent fasting to start with and gradually lose weight in a healthier way that will ultimately help you maintain? Intermittent Fasting is more of a life style choice, not a diet.
But that could just be me and it's all just my opinion. You do you.