People with high beta-carotene intakes have about one-third the cancer risk as people with low beta-carotene intakes.
People with higher intakes of vitamin C have about half the risk for many types of cancer when compared to people with low vitamin C intakes.
People with low intakes of several antioxidants have more DNA damage than people with generous intakes.
People with the highest intakes of vitamin C, E and beta-carotene have a significantly lower risk of lung cancer.
Men who took vitamin E supplements for 10 years or more had a 30 % lower risk of bladder cancer.
There are over 66 studies showing cancer-prevention activity of green tea, black tea and their constituents. These include cancer reduction in the skin, lung, oral cavity, esophagus, stomach, liver, pancreas, bladder, small intestine, colon and prostate.