For as long as I can remember (perhaps 4 years of age) I have had problems with being overweight. I have also survived two heart attacks (at 40 and 47), so I have been searching for a way to get healthier for a long time. I tried many different regimens including Dean Ornish's diet plan for 18 months after my first heart attack. I lost weight, but eventually went back to my old ways and gained all of the weight back and more. At my heaviest, I was 306 lbs (at 6'2" tall) and this is when I had my second heart attack. I realized that I could not embark on any temporary "diet" because I would eventually revert back to (bad) form. What I needed was a permanent lifestyle change. In the last several years, I have read a number of books on nutrition related to weight loss and in October 2013, I read "The 100" by Jorge Cruse and started down the path of attempting (though not always succeeding) to limit my carbohydrate intake to 100 sugar calories per day or less, with most of that coming from dry red wine and dark chocolate (>70% cocoa solids). I have largely eliminated both grains and fructose from my diet. I also quit diet pop cold turkey to eliminate the memory of "sweetness". By doing so, I have experienced many positive benefits. In the 15 months since I started, I have lost over 40 pounds and I would say that this has been almost effortless compared to past undertakings. As the author of this book noted, my experience of hunger has changed completely. I no longer go through intense craving cycles daily and I can go for eight or more hours without really needing to eat. I know I am hungry and that it would be nice to eat, but it is not intense and there is no weakness or headache associated with the long period of not eating. I do not shy away from meat and fat, though I am careful not to eat much polyunsaturated vegetable oil and not to eat virtually any trans fat. I also eat a lot of green vegetables and small amounts of fruit, mostly berries and melons. Perhaps the best side-effect is my sense of well-being. I have truly never felt better in my life. The daily dyspepsia I experienced when eating a lot of grains and sugar is a distant memory and my mental acuity is much better. The triglyceride level in my blood is < 50 mg/dl which is excellent and is far more indicative of heart disease risk than total cholesterol ever was. I have found my permanent lifestyle and couldn't be happier. If you would like to read some other eye-opening books, let me suggest "Grain Brain" by Dr. David Perlmutter, "Fat Chance" by Dr. Robert Lustig, "Wheat Belly" by Dr. William Davis, "The Great Cholesterol Myth" by Dr. Stephen Sinatra and Jonny Bowden, Ph.D., "Good Calories, Bad Calories" by Gary Taubes (or the shorter version called "Why We Get Fat and What to Do About It") and "The Big Fat Surprise" by Nina Teicholz. You will be shocked at how little evidence there ever was that low fat and high carb diets were good for you and how much bad science was practiced to foist this myth off on the public for so long. Good luck in your journey. By the way, the only reason I didn't give this book five stars is that I am a scientist and would have preferred a little more technical detail, but from a practical point of view, there is nothing wrong.