学生营养与健康状况是反映一个国家或地区经济与社会发展、卫生保健水平和人口素质的重要指标。近年来,学生营养问题受到国家和各级政府的高度重视。改善学生营养状况最关键的一项措施就是合理学生的膳食结构[1],因为部分学生中午在校就餐,因此学生午餐可以作为直接干预的对象。为了 Nutrition and health status of students is an important indicator of economic and social development, health care level and quality of population in a country or region. In recent years, the issue of student nutrition has been highly valued by the government at all levels and at all levels. One of the most important measures to improve the nutritional status of students is to rationalize the dietary structure of students [1]. Since some students eat at noon, students’ lunch can be used as a direct intervention. in order to