大家知道，奶类是一种营养丰富的食品，除含有蛋白质外，还含有丰富的矿物质和维生素，既可以提供优质蛋白质，还对于改善我国居民的膳食质量有重要意义。儿童和青少年增加奶及奶制品的摄入，可以补充生长发育所需要的蛋白质，提高身体素质和抗病能力。钙摄入不足可引起儿童佝 As we all know, milk is a nutritious food, in addition to containing protein, but also rich in minerals and vitamins, both to provide high-quality protein, but also for improving the quality of our residents diet is of great significance. Children and adolescents to increase milk and dairy products intake, can complement the growth and development of the required protein, improve physical fitness and disease resistance. Insufficient calcium intake can cause children 佝