There are two things you need to know about tomatoes: red are the best, because they’re packed with more of the antioxidant lycopene; and processed tomatoes are just as potent as fresh ones, because it’s easier for the body to absorb the lycopene. Studies show that a diet rich in lycopene can decrease your risk of bladder, lung, prostate, skin, and stomach cancers, as well as reduce the risk of coronary artery disease, and help eliminate skin-aging free radicals caused by ultraviolet rays. “Cooked tomatoes and tomato paste work best,” says celebrity trainer Gunnar Petersen.