【摘要】 目的了解慈溪市高中寄宿生维生素营养状况,并针对出现的问题提出改进措施。方法采用5d称重法和调查问卷法,对慈溪市2所寄宿制高中1990名学生进行膳食营养调查,随机抽73名学生测定尿中维生素B1、维生素B2、维生素C、肌酐质量浓度,并进行维生素营养评价。结果学生的能量、蛋白质、维生素B1、维生素C摄入量均超过推荐摄入量的80%,能够满足机体需要;维生素B2摄入量不足,只占到RNIs的64.3%;73名学生尿维生素B1、维生素B2、维生素C、肌酐的平均质量浓度分别为48.0μg/L,8.9μg/L,12.4mg/L和0.29g/L,维生素B1、维生素B2、维生素C不足率分别为6.9%,83.6%和4.1%。结论为保证高中寄宿生的维生素营养,应改善膳食结构,加强营养教育,采取营养干预措施。更多还原

【Abstract】 Objective To investigate some vitamins nutritional status in high boarding school students in Cixi city,and to provide evidence for future intervention.Methods 5-day weight recording method and a diet-history interview were used to investigate the dietary intake and nutritional status in 1 990 high school students from 2 boarding schools in Cixi city,while concentration of vitamin B1,B2,C,and creatinine were measured in 73 randomly selected urine samples.In the end,vitamin nutritional status was assessed.Results It was shown that intake of energy,protein,vitamin B1 and vitamin C were over 80% of RNIs which could meet the body requirements while intake of vitamin B2 was only 64.3% of RNIs.Average concentration of vitamin B1,B2,C,and creatinine(median)in urine samples were 48.0 μg/L,8.9 μg/L,12.4 mg/L,and 0.29 g/L respectively.Further analysis showed that 6.9% students had insufficient vitamin B1 intake,83.6% students had insufficient vitamin B2 intake,and 4.1% students had insufficient vitamin C intake.Conclusion Nutritional intervention measures including health education should be taken to improve the vitamins nutritional status in high boarding school students.更多还原