Lycopene is a naturally occurring carotenoid, a type of pigment responsible for the red and pink colors found in various fruits and vegetables. It is a powerful antioxidant, which means it can neutralize harmful free radicals in the body and protect against cellular damage. Lycopene is most commonly associated with tomatoes, but it can also be found in other foods such as watermelon, pink grapefruit, and guava. Some studies suggest that lycopene may have potential health benefits, such as reducing the risk of certain cancers and promoting heart health, though more research is needed to confirm these findings.