Retinol, total carotenoids, ß-carotene, and tocopherols in total diets of male adolescents in the Netherlands
article
Over a period of 2.5 years, every 3 months 221 different food items forming a "market basket" were purchased, prepared, and divided into 23 food commodity groups. The market basket was based on a study of the dietary intake of 18-year-old males. In the (homogenized) food groups vitamin A, β-carotene, and total carotenoids as well as α-, β-, γ- and δ-tocopherol were determined by chemical analysis. The analyzed total daily amount of vitamin A (1481 retinol equivalents or 4937 IU) can be considered as more than sufficient when compared to Dutch recommendations for male adolescents. Also the vitamin E intake (22.4 IU) meets the requirements. The group meat and meat products shows the highest contribution to the daily amount of retinol (37%); for the carotenoids, the groups leafy vegetables and root vegetables are the most important sources. The group butter, margarine, oils is the most important source for the average daily supply of all analyzed tocopherols (32-49% contribution). Regarding seasonality, highest daily amounts of most vitamins were observed in the months November/December, while lowest daily intakes seem applicable in May. © 1990 American Chemical Society.
TNO Identifier
48139
ISSN
00218561
Source
Journal of Agriculture and Food Chemistry, 38(1), pp. 211-216.
Pages
211-216
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