As an antioxidant, it is about twice as powerful as beta-carotene. There is some evidence that a diet high in lycopene may reduce the risk of cancer of the prostate as well as other cancers. Lycopene may also help prevent macular degeneration and cataracts. Sources Lycopene is not a necessary nutrient. However, like other substances found in fruits and vegetables, it may be very important for optimal health.
Tomatoes are the best source of lycopene.
Happily, cooking doesn't destroy lycopene, so pizza sauce is just as good as a fresh tomato. 3 Lycopene is also found in watermelon, guava, and grapefruit. The optimum dosage for lycopene has not been established. However, one study on lycopene and prostate cancer suggested that about 6.5 mg is an effective daily intake. 4 Therapeutic Uses Lycopene may help prevent cancer , particularly cancer of the prostate, but also possibly cancer of the lung, colon, and breast.