cancer center website。
The U.S. Preventive Services Task Force (USPSTF) recommends against beta-carotene or vitamin E supplements for the prevention of cardiovascular disease or cancer (33).
Beta-carotene is not effective in treating heart disease, cancer, or HIV or preventing cataracts or macular degeneration.
Beta-carotene is an antioxidant that is found in yellow and orange fruits, such as apricots, cantaloupe, and papaya, as well as squash, carrots, sweet potatoes, pumpkin, leafy greens, and broccoli. Although scientists have proposed a number of mechanisms by which beta-carotene obtained through a healthy diet may prevent cancer, current evidence does not support supplementation.
