Red fruits and vegetables, such as tomatoes and watermelon, are rich sources of a phytonutrient, called lycopene that lowers heart disease risk in everyone and prostate cancer risk in men. However, lycopene is a fat-soluble compound, so is poorly absorbed if consumed in a fat-free meal. A study from Ohio State University found that just by adding a bit of avocado, rich in monounsaturated fats, to a fat-free tomato-based salsa, they could increase absorption of lycopene up to 15-fold! But, don’t think it is just tomatoes that do the trick. You can get your lycopene from watermelon, too. Just add a little fat to the snack, such as mixing it with lemon yogurt (not non-fat) or make a salad with watermelon and jicama with a little honey vinaigrette with olive oil dressing.