合理膳食和丰富的营养是促进儿童少年生长发育极为重要的条件。摄入不足会导致智力与体格发育不良。我们于1984年5月～1985年11月对开封市中山路第六小学试行课间加餐,并选馆驿街小学(非加餐学校)作为对照,进行调查研究,其结果如下。 1 调查内容和方法 1.1 对象:选择学生家庭经济状况、生活习惯、膳食结构及学习负担中等的有代表性的 Reasonable diet and rich nutrition is to promote the growth and development of children and adolescents is extremely important condition. Inadequate intake can lead to mental retardation and physical development. From May 1984 to November 1985, we experimented with lunch at the sixth primary school in Zhongshan Road, Kaifeng, and selected the post-secondary school (non-culinary school) as a reference to conduct a survey. The results are as follows. 1 survey content and method 1.1 object: choose the student’s family economy, living habits, dietary structure and learning burden moderate representative