I have not read this book. In my opinion it might work for some people and it might not for others. I prefer to approach each client I train in a more personalized way. This means by designing a customized program for that client specifically and then work with a dietitian on a diet program that will bring results for them. Each person is different and has individual needs and goals. Also, many of the clients could have various medical problems and a health history that a general diet and fitness program will not be the best solution for them. There are numerous books out there that promote their opinions about what is the best diet for you and each one has advantages and risks. This is why I think the best way to approach each case is individually and make adjustments if needed in order to achieve the desired results.