A new study has proven what many of us fear: Eating less might be the key to living longer. A group of 200 adults who ate, on average, 12 percent fewer calories saw significant decreases in heart disease, insulin resistance, and C-reactive protein, a marker of inflammation. Calorie-restrictive diets have proven to extend lives, but living past 100 is not just about eating less. In addition to being lower in calories, chosen foods must be high in nutrition density. Vegetables, of course, are the best choice, with fruits and nuts following close behind. Empty calories to avoid? Trans-fats, sugars and meats like sausages and bacon (sorry!). Have you ever tried eating fewer calories and felt healthier? What are some of your favorite nutrient-dense foods? Share your thoughts in the comments.