北京市学生营养午餐营养素供给量评估

目的：了解北京市中小学生营养午餐营养素供给情况,为改进中小学学生营养午餐营养素供给量提供科学依据.方法：采用查账法结合学生营养午餐食谱,对丰台区3家学生营养午餐的送餐企业提供的营养午餐进行调查和分析.结果：中小学食谱能量的供给基本符合国家卫生部发布的《学生营养午餐营养素供给量》标准,中小学生能量分别达到标准值的100.2％和100.7％.中学生蛋白质供给偏高,超国家标准111.6％;维生素、矿物质大部分满足需求;钙、维生素A、维生素B族不足比较明显,均低于国家标准值的70％以下,尤其是钙的供给量在国家标准的46％以下.现场调查食谱的执行情况良好,但发现实际制作中存在油量超标、剩饭现象.结论：学生营养午餐在10余年的发展过程中已趋于成熟,随着时代的变迁,有些长期存在的个别营养成分供给不足的情况亟待解决.

Assessment on Nutrients Supply of Nutritional Lunch of Students in Beijing City

[Objective] To study nutrients supply of nutrition lunch among middle school students in Beijing city and provide scientific basis to improve primary and secondary school students＇ nutrient supply of nutrition lunch.[Method] We surveyed and analyzed nutritious lunch of three student nutritious lunch meals enterprises in Fengtai District in Beijing through recipes in combination with the audit method.[Result] Energy supply of primary and secondary schools released recipes met national health standard basically,which achieved the standard of 100.2％ and 100.7％ respectively.Protein supply of secondary schools was higher,which exceeded national standard 111.6％.Vitamins and minerals most met demand,while calcium,vitamin A and vitamin B group were lack obviously,which were all below 70％ of the national standard,especially calcium supply were below 46％ of the national standard.Field investigation recipes perform was in good condition,but phenomenon of production of oil paint and leftovers existed.[Conclusion] Students＇ nutritious lunch had been mature in more than 10 years,and as the changes of times,some of the long-term individual insufficient nutrients supply were needed to be resolved.