双份饭法测定重庆某高校大学生钙、铁和锌膳食摄入水平  

THE ASSESSMENTS OF AN UNIVERSITY STUDENTS' DIETARY INTAKE LEVELS OF CA、FE AND ZN BY USING DUPLICATE-DIET METHOD

作　　者：张勇[1] 曹显庆[1] 赵舰[2] 赵勇[1] 

机构地区：[1]重庆医科大学公共卫生学院,重庆400016 [2]重庆市疾病预防控制中心

出　　处：《现代预防医学》2010年第20期3850-3851,3853,共3页Modern Preventive Medicine

摘　　要：[目的]了解某高校在校大学生Ca、Fe和Zn3种营养素膳食实际摄入水平。[方法]随机抽取男、女学生各60名,采用双份饭法收集调查对象三餐饭菜,湿法消化,用原子吸收分光光度法测定出膳食中Ca、Fe和Zn3种元素含量。[结果]男生日人均摄入量分别为Ca为166.18mg、Fe为19.28mg、Zn为6.71mg;女生日人均摄入量分别是:Ca为103.11mg、Fe为15.66mg、Zn为4.90mg。[结论]大学生Ca、Zn膳食摄入量大大低于推荐膳食摄入量,Fe的摄入基本达到推荐量,但Ca、Fe和Zn缺乏的风险和缺乏的程度有待进一步评估。[Objective] To assess the students dietary intake level of Ca,Fe and Zn.[Methods] 60 university students in each gender form one campus were randomly selected;Subjects＇ diets were collected by duplicate-diet method.Diets were wet digested,and the contents of Ca,Fe and Zn in diets were analyzed by flame atomic absorption spectrometer.[Results] The average daily intakes of Ca,Fe and Zn for male were 166.18 mg,19.28 mg and 6.71 mg,respectively.For female,the results were 103.11 mg,15.66 mg and 4.90 mg,respectively.[Conclusion] Students＇ dietary intakes of Ca and Zn were obviously lower than those recommended levels while the intake Fe was close to the recommended level,but it is necesart to have more proof to determine the risks and degrees of deficiency of these three elements.

关 键 词：钙 铁 锌 双份饭法 大学生 

分 类 号：R161.5[医药卫生—公共卫生与预防医学]