Can green tea prevent colorectal cancer?
Green vegetables, which are rich in the antioxidant vitamins C, E and beta-carotene and a good source of dietary fiber, seem to provide some protection against colorectal cancer. Tea catechins and related polyphenols may have an inhibitory effect on colon cancer. Grape juice also may have a similar inhibitory effect. Clinical trials are needed to determine true efficacy. Be careful of over-the-counter dietary supplements touted to decrease the risk of colon (or any other) cancer. Let your doctor know if you are taking any over-the-counter medications to try to decrease your cancer risk, so he or she can make sure that they are right for you.
