Lycopene is a carotenoid and phytonutrient found in red fruits and vegetables such as tomatoes, pink grapefruits, watermelons and papayas. It is the compound that is responsible for the red color in these foods. Lycopene is a powerful antioxidant that can help protect against degenerative diseases. It does this by neutralizing free radicals in the body. Lycopene may help prevent DNA damage in the cells and help the cells to function better.