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Alpha CaroteneHowever, as a precursor to vitamin A, alpha-carotene is only about half as effective as beta-carotene. More importantly from anti aging perspective, however, it has been suggested that alpha-carotene may be even more effective than beta-carotene in its role as an antioxidant. As an antioxidant, the compound has a role in preserving overall health of the body, and in preventing age related diseases, including heart disease and cancer. Alpha-carotene contains flavonoids, which are antioxidant substances that give color and flavor to many orange- and red-colored fruits and vegetables. Alpha Carotene - StudiesLanger, Stephen. "Carotenoids may prevent cancer growths." Better Nutrition, March 1990. Seddon, Johanna M., et al. "Dietary carotenoids, vitamins A, C, and E, and advanced age-related macular degeneration." JAMA, The Journal of the American Medical Association, Nov. 9, 1994. Maureen, Ternus. "Don't count out 'other' carotenoids; they may offer big health bonus." Environmental Nutrition, June 1994. Hankinson, Susan E. and Meir J. Stampfer. "All that glitters is not beta carotene." (Editorial) JAMA, The Journal of the American Medical Association, Nov. 9, 1994. "Bran and beta carotene may check colon cancer," in Better Nutrition for Today's Living. May 1995. Salynn, Boyles. Report on "Inhibitory effects on alpha- carotene on proliferation of the human neuroblastoma cell line." NCI Cancer Weekly, Nov. 13, 1989. Giovannucci, Edward, et al. "Intake of Carotenoids and Retinol in Relation to Risk of Prostrate Cancer." Journal of the National Cancer Institute. 1995 Vol. 87, No. 23. Liebman, Bonnie. "Beyond Beta Carotene." The Natural Way. January/February 1996. Murakoshi, M., et al. "Inhibitory effects of alpha-carotene on proliferation of the human neuroblastoma cell line." Journal of the National Cancer Institute, 1989: 81.
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