【摘要】 [目的 ]　了解上海市某区中小学午餐营养质量 ,并提出改进措施。 [方法 ]　对连续 5天午餐食物实样作供给量评估 ,并运用电脑营养分析系统软件 ,进行膳食营养素供给量估算 ,并与RLA相比较。 [结果 ]　 (1)小学和中学午餐平均热能供给量分别为 5 99.8kcal(占RLA的 85 .7% )和 75 4.4kcal(占RLA的 81.1% ) ,平均每餐蛋白质供给量分别为 2 1.1克 (占RLA的 87.8% )和 2 4.7克 (占RLA的 77.3 % ) ,平均每餐脂肪供给量分别为 15 .9克 (占RLA的6 8.2 % )和 2 5 .5克 (占RLA的 98.8% ) ,平均每餐碳水化物供给量分别为 93 .1克 (占RLA的 94.5 % )和 10 6 .7克(占RLA的 74.9% )。小学和中学平均蛋白质 /脂肪 /碳水化物的热能比分别为 14.1/2 3 .9/6 2 .1和 13 .1/30 .4/5 6 .6。(2 )小学和中学午餐平均钙、锌供给量普遍不足 ,小学午餐铁供给充足 ,而中学供应不足。 (3)中小学午餐中维生素A、B1、B2 和C供给量均不足 ,尤以维生素A为甚。 [结论 ]　该区中小学午餐质量存在食物结构的缺陷 ,需要进一步调整。更多还原

【Abstract】 Objective] To estimate the dietary nutrients supply of lunch in 4 primary and 5 middle schools of Shanghai and make suggestions for improval. [Methods] The nutrients in lunch were estimated by food samples and compared with RLA. [Results] (1)The mean supply of energy in lunch of primary and middle schools was 599.8kcal( 85.7% of RLA) and 754.4 kcal (81.1% of RLA) respectively, the protein supply in lunch was 21.1g (87.8% of RLA) and 24.7g(77.3% of RLA)respectively, the fat supply in lunch was 15.9g (68.2% of RLA) and 25.5g(98.8% of RLA) respectively, the carbohydrate supply was 93.1g (94.5% of RLA) and 106.7g (74.9% of RLA). The energy ratios of protein/fat/carbohydrate in primary and middle schools were 14.1/23.9/62.1 and 13.1/30.4/56.6 respectively. (2)The supplies of Ca, Zn in lunch of primary and middle schools were both difficient. The Fe supply was appropriate in primary schools, but not so in middle schools. (3) The supplies of VitA, VitB 1,VitB 2 and VitC were inadequate. [Conclusion] There are some nutritional problems in lunch of primary and middle schools which need improving.更多还原