Thane C W, Bates C J, Prentice A
MRC Human Nutrition Research, Elsie Widdowson Laboratory, Fulbourn Road, Cambridge, UK.
Eur J Clin Nutr. 2004 Feb;58(2):363-75. doi: 10.1038/sj.ejcn.1601792.
To examine zinc and vitamin A intake and status and associated dietary, socio-demographic, lifestyle and physiological factors in British young people.
National Diet and Nutrition Survey of young people aged 4-18 y.
Great Britain, 1997.
Complete 7-day weighed dietary records were provided by 1520 participants, while 1193 provided blood samples.
A total of 13 and 11% of participants respectively reported low dietary intakes of zinc and vitamin A (retinol equivalents), relative to the UK lower reference nutrient intake. These percentages were not altered significantly by including contributions to intake from supplements, mainly containing vitamin A (as retinol). Likelihood of low zinc and/or vitamin A intake was more often associated with age, sex and likely under-reporting of food consumption than with other socio-demographic and lifestyle factors. Low zinc and vitamin A intakes were generally less likely in those with higher consumption of dairy foods (mainly milk). Zinc and vitamin A status (assessed by plasma zinc and retinol concentrations) were adequate in almost all participants. Plasma zinc concentration was not significantly associated with zinc intake. Plasma retinol concentration was correlated with vitamin A intake (overall r=0.17, P<0.001; adjusted for age and plasma alpha(1)-antichymotrypsin concentration) and increased significantly with age (P<0.001) in both sexes. A significant association was found between plasma zinc and retinol concentrations in boys only (r=0.17, P=0.001).
Zinc and vitamin A intakes and status were generally adequate in this national sample of British young people.
研究英国年轻人锌和维生素A的摄入量、状况以及相关的饮食、社会人口统计学、生活方式和生理因素。
对4 - 18岁年轻人进行全国饮食与营养调查。
英国，1997年。
1520名参与者提供了完整的7天称重饮食记录，1193名提供了血样。
分别有13%和11%的参与者报告锌和维生素A（视黄醇当量）的膳食摄入量低于英国较低参考营养素摄入量。将主要含维生素A（视黄醇）的补充剂对摄入量的贡献包括在内后，这些百分比没有显著变化。锌和/或维生素A摄入量低的可能性更多地与年龄、性别以及可能的食物摄入量报告不足有关，而非其他社会人口统计学和生活方式因素。乳制品（主要是牛奶）摄入量较高的人群中，锌和维生素A摄入量低的情况通常较少。锌和维生素A状况（通过血浆锌和视黄醇浓度评估）在几乎所有参与者中都充足。血浆锌浓度与锌摄入量无显著关联。血浆视黄醇浓度与维生素A摄入量相关（总体r = 0.17，P < 0.001；经年龄和血浆α1 - 抗糜蛋白酶浓度校正），且在两性中均随年龄显著增加（P < 0.001）。仅在男孩中发现血浆锌和视黄醇浓度之间存在显著关联（r = 0.17，P = 0.001）。
在这个英国年轻人的全国样本中，锌和维生素A的摄入量及状况总体充足。
