Really, all diet books are useless beyond the pure principles. That’s why I have advocated the “Paleo” diet for the past several years. Get the basics down out of any paleo diet book, then you have to finish the job yourself. It’s not about low carb or high fat; it’s about cutting back or cutting out neolithic foodstuffs; i.e., processed foods and derivatives. Nobody can prescribe for you whether a diet of 40, 50, 70 or 80% natural fats work best for you, or, 40, 50, 70 or 80% STARCH. I can tell you this, once I do a body composition analysis on you, I am very good at telling you how much protein in grams you should strive for on a daily basis.
For me, many years ago I used to love pasta and high starch meals. But I wasn’t as healthy as I am now. I can still enjoy thoses foods occasionally, but l prefer more protein & fat now. Each of us has to figure out what’s best for ourself. We are our own laboratory & chemistry set.