I have tried many diet strategies in my life. (Not all the kind meant for weight loss) I've done everything from raw foods only, vegetarianism, high carb low fat etc. I always found that I felt something was missing, especially on the government recommended food pyramid. Now the USDA food pyramid recommends 15% protein, 25% fats and 60% carbohydrates . I came across anther food pyramid that illustrates why people who follow the USDA pyramid are getting fatter and fatter. The feed lot pyramid is used as a guideline to fatten up livestock for slaughter. It looks like this: 14% protein, 25% fats, 61% carbohydrates. Is it any wonder Americans look like heifers and sows?