小学生正在长身体,又要学习科学文化知识,体力、脑力负担比学龄前明显加重,他们的体质水平将直接影响到成年后的健康。据国内各地调查,很多学龄儿童的蛋白质供给量达不到要求,“边缘性缺锌”、“缺铁性贫血”较为普遍,各种维生素摄入量不足,因此应尽量增加瘦肉、蛋、禽、鱼、大豆制品及各种新鲜蔬菜的供给。这类食品如果得到充分保证,则蛋白质、维生 Primary schoolchildren are long body, but also to learn scientific and cultural knowledge, physical, mental burden significantly increased than the pre-school age, their physical level will directly affect the adult health. According to the survey across the country, many school-age children do not meet the protein supply requirements, “marginal zinc deficiency ”, “iron deficiency anemia ” is more common, all kinds of vitamin intake is insufficient, so should be as thin as possible Meat, eggs, poultry, fish, soy products and a variety of fresh vegetables supply. If these foods are fully guaranteed, the protein, subsistence