营养成份是人体(人脑)的物质基础,同样也是人体抵御疾病能力的基础。我们知道,儿童在脑发育阶段,如果营养不足会导致脑发育的永久性变形;小儿长期营养不良容易感染多种疾病,如麻疹,结核病等。营养与儿童大脑发育及免疫系统有着密切关系。儿童营养的最佳来源是食物。要给孩子充足的营养,应该注意合理饮食搭配。儿童在其成长的不同阶段,营养供给也不尽相同。学龄前儿童一般是指4—6岁入小学前的儿童。学龄前儿童饮食与婴幼儿饮食的不同点在于生长发育速度减慢,需要热量、蛋白质、水等都相对减少。另一方面由于消化力增强、生 Nutritional material is the material basis of the human body (human brain), which is also the basis of the human body’s ability to resist diseases. We know that children in the brain development stage, if insufficient nutrition will lead to permanent brain development deformation; children with long-term malnutrition susceptible to a variety of diseases such as measles, tuberculosis and so on. Nutrition and children’s brain development and immune system are closely related. The best source of nutrition for children is food. To give children adequate nutrition, should pay attention to a reasonable diet. Children at different stages of their growth, nutrition supply is not the same. Preschoolers generally refer to children 4-6 years of age before entering primary school. Preschool children’s diet and infant diet difference is that growth and development slowed down, the need for heat, protein, water, etc. are relatively reduced. On the other hand due to enhanced digestion, students