Ever hear that water can help you lose a few extra pounds? It can—if you eat foods that contain a lot of water, like fruits and veggies. In a University of Tokyo study, women who ate high-water-content foods had lower body mass indexes and smaller waistlines. Researchers speculate that the water in these foods may fill you up so you eat less. Make the strategy work for you by adding more of these in-season fruits and veggies—each is at least 90% water—to your meals.