期刊
NUTRITION RESEARCH
卷 20, 期 11, 页码 1537-1546出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0271-5317(00)00238-4
关键词
carotenoids; vitamin E; vitamin C; age; gender
The objective of the study was to examine the relationship between dietary intake and plasma concentrations of carotenoids, tocopherols, and vitamin C in young to middle-aged nonsupplemented women and men as well as evaluate their vitamin E and vitamin C status. Subjects included young(19-24 y) and middle-aged (25-50 y) men and women. The four age x gender groups had similar dietary intakes of beta -carotene, alpha -carotene, cryptoxanthin, lycopene, lutein, vitamin E, and vitamin C. These four groups also had similar plasma beta -carotene, cryptoxanthin, lycopene, alpha -tocopherol,;md vitamin C concentrations. The percentage of each group having low (<20 mol/L) plasma vitamin E levels were: young females, 81%; middle-aged females, 63%; young males, 83%; and middle-aged males, 64%. All subjects but one had plasma vitamin C levels indicative of adequacy. Overall, 72% of subjects had less than acceptable vitamin E status, and 48% reported consuming less than the Estimated Average Requirement for the vitamin. (C) 2000 Elsevier Science Inc
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