. "2 Vitamin C, Vitamin E, Selenium, and •-Carotene and Other Carotenoids: Overview, Antioxidant Definition, and Relationship to Chronic Disease." Dietary Reference Intakes for Vitamin C, Vitamin E, Selenium, and Carotenoids. Washington, DC: The National Academies Press, 2000.
a A primary prevention trial is one in which the study participants have no history of the disease outcome being investigated. Participants in a secondary prevention trial have had a prior occurrence of the outcome being investigated.
b Unless noted otherwise, results are statistically significant.
c U.S. = United States.
d CVD = cardiovascular disease.
task was to select, in addition to vitamin C, vitamin E, and β-carotene, other food components which might prove to be antioxidants and play a role in health; the third task was to assess the role of these compounds in health; and the fourth task was to develop Dietary Reference Intakes (DRIs) for the selected nutrients. The panel was asked to evaluate vitamin C, vitamin E, and β-carotene and other antioxidants. Since other dietary carotenoids share many,