This is an excellent book based on science. If you want to reclaim your health, eat and never be hungry again, lose weight, have more energy, and not have to take drugs to stay alive when you get older, then pick up this book, read it, and follow the simple instructions. I did, a decade ago, and I will never go back because the benefits are SO life enhancing. No white-knuckle discipline required - just eat off the "OK" list and never worry about a diet or being overweight again. Not ever! Try it. You'll like it.