Lycopene

Lycopene is a red, fat-soluble carotenoid found mainly in tomatoes and watermelon. It has a strong antioxidant power and when cooked, it becomes more concentrated and easily assimilated. Ketchup for example (cooked tomato) is an interesting food for lycopene apart from the sugar content. This antioxidant is said to have protective properties against prostate cancer, among other things.