Tomatoes are the carotene lycopene, one of the most powerful natural antioxidants. In some studies, lycopene, in cooked tomatoes, has been found to help prevent prostate cancer, but other research contradicts . Lycopene has also been shown improve to the skin's to protect against harmful UV rays. A study done by researchers at Manchester and Newcastle universities revealed that tomato can protect against sunburn and help keeping the skin looking youthful.