Giraud David W, Kim Young-Nam, Cho Youn-Ok, Driskell Judy A
Department of Nutrition and Health Sciences, University of Nebraska, Lincoln, NE 68583-0806, USA.
Int J Vitam Nutr Res. 2008 May;78(3):148-55. doi: 10.1024/0300-9831.78.3.148.
Studies on the vitamin E status of Korean children are lacking. Dietary intakes and plasma concentrations of tocopherols of healthy 2- to 6-year-olds living in Kwangju, Republic of Korea, were determined and their vitamin E status evaluated. Subjects included 66 girls and 65 boys, with 21-32 subjects per age group. Subjects' intakes were recorded by a trained interviewer for foods eaten at preschool/kindergarten; otherwise, three consecutive 24-hour food recalls were obtained from parents. Plasma tocopherol concentrations were determined using high-performance liquid chromatography. Intakes of energy and total monounsaturated and polyunsaturated fats were significantly different (p < 0.05) among age groups, not gender, with 2- and 3-year-olds having lower intakes. Alpha- and gamma-tocopherol intakes were similar by age and gender. Sixty-seven percent consumed less than the Korean Adequate Intakes for vitamin E, and 77% had Alpha-tocopherol intakes less than USA/Canadian Estimated Average Requirements. Plasma alpha-tocopherol concentrations, but not gamma-tocopherol, were significantly higher (p < 0.05) for 2-year-olds. Two-thirds of subjects had plasma alpha-tocopherol concentrations less than 12 micromol/L, which is indicative of vitamin E inadequacy in adults; guidelines for children do not exist. Many of the Korean children had inadequate intakes and likely inadequate plasma concentrations of vitamin E.
关于韩国儿童维生素E状况的研究尚属空白。我们测定了居住在韩国光州的2至6岁健康儿童的膳食摄入量和血浆生育酚浓度,并对他们的维生素E状况进行了评估。研究对象包括66名女孩和65名男孩,每个年龄组有21至32名受试者。由经过培训的访谈者记录受试者在幼儿园摄入的食物;否则,从家长处获取连续三天的24小时食物回忆记录。使用高效液相色谱法测定血浆生育酚浓度。各年龄组之间能量以及总单不饱和脂肪和多不饱和脂肪的摄入量存在显著差异(p < 0.05),而非性别差异,2岁和3岁儿童的摄入量较低。按年龄和性别划分,α-生育酚和γ-生育酚的摄入量相似。67%的儿童维生素E摄入量低于韩国适宜摄入量,77%的儿童α-生育酚摄入量低于美国/加拿大估计平均需求量。2岁儿童的血浆α-生育酚浓度显著更高(p < 0.05),但γ-生育酚浓度并非如此。三分之二的受试者血浆α-生育酚浓度低于12微摩尔/升,这在成年人中表明维生素E不足;目前尚无针对儿童的相关标准。许多韩国儿童维生素E摄入量不足,血浆浓度可能也不足。