Trying to slim down? Weight Watchers and Jenny Craig scored the best marks for effectiveness in a review of research on commercial diet programs, but many other plans just haven't been studied enough to evaluate long-term results.
Americans' eating habits have improved -- except among the poor, evidence of a widening wealth gap when it comes to diet. Yet even among wealthier adults, food choices remain far from ideal, a 12-year study found.
Would you like to be an Olympian? You can start by practicing their diet. Perhaps if you ate like an Olympian, you would start to look like one. Here are the diets of some of our Olympic athletes.