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These are a great source of fiber and protein; nuts and seeds also provide healthy fats and antioxidants. Eat a serving of legumes (½ cup, cooked) � found in hummus or lentil soup � at least twice a week and a small portion of nuts daily (about 1 tablespoon, or 10 to 12 almonds or walnut halves).

Diet fads tend to come and go: One day we're eating low-fat, low-calorie and low-sugar foods; the next we're eating like cavemen, or giving up meat, or eating only cabbage and grapefruit. But while many diets have had their moment in the spotlight, there's one diet that has endured � the Mediterranean diet.

Since the first paleo diet book hit store shelves nearly two decades ago, this eating plan has skyrocketed in popularity. On paper, the paleo diet, encourages consumption of foods that would have been hunted or gathered by our ancestors during the Paleolithic era. That means following a diet rich in...