When I started practicing medicine twenty-five years ago, I followed the party line. I recommended calorie counting and low-fat diets for weight loss and was usually disappointed by the results. People just kept gaining weight. Then, in the 1990s, some of my patients started ignoring warnings about fat and cholesterol and going on low-carb diets. The results were astonishing. Folks who had been unsuccessful at losing weight for years started shedding pounds more easily than they thought possible even as they ate generous amounts of rich food. Remarkably, their blood cholesterol and sugar levels looked better than ever
