南京市区中学生膳食状况调查

目的了解南京市区中学生的膳食结构及存在的问题,为合理膳食提供依据。方法采用24h膳食回顾法,对随机整群抽取的南京市区4所中学的336名学生进行连续3d的膳食调查,并用中国居民膳食指南和中国居民膳食营养素参考摄入量(DRIs)进行评价。结果南京市区中学生谷类和果蔬类食物摄入不足,畜禽肉类和蛋类摄入量偏高。除硒和维生素E以外的其他营养素以及能量均存在不同程度的摄入不足,最严重的是钙和维生素A。蛋白质和锌多来源于动物性食品。三餐及三大营养素的供能比不合理。结论南京市区中学生膳食结构不合理,营养素摄入不足。应加强营养教育,指导学生合理膳食。

Dietary Survey and Evaluation of High School Students in Nanjing

Objective To investigate the dietary pattern of high school students in Nanjing,and to provide evidence for reasonable dietary.Methods By random cluster sampling,336 students were recruited from four middle schools in Nanjing.Dietary survey was conducted using the method of 24h dietary recall for 3 days.The dietary data were evaluated by the Chinese Balanced Diet Pagoda and the Chinese DRIs in 2000.Results The intakes of cereal and vegetables were lower,while the meat and egg were higher.Vitamin E and selenium were sufficient,while the total energy and other vitamins and minerals were insufficient,especially,calcium and vitamin A.The protein and zinc were almost from animal foods.The energy proportion from three meals were unreasonable.Conclusion Dietary pattern of the high school students is unreasonable.Nutrition education should be strengthened to direct the students' reasonable diet.