Compared with milk powder, milk powder has higher nutritional value. Milk here generally refers to pure milk. Although the content of protein, minerals and vitamins in real pure milk is relatively high, the specific content will change according to the feeding situation of dairy cows. If the feed nutrition of dairy cows can't keep up, the protein nutritional value of milk will decrease. Nutritive milk powder is prepared on the basis of milk or goat's milk according to the needs of human body, and its nutritional components are relatively fixed. During the processing of all kinds of bagged or boxed pure milk, its nutritional components have been destroyed in high temperature environment, and its nutritional value has obviously decreased. Moreover, milk and milk powder contain some protein, inorganic salts, minerals and fats, which are very beneficial to human absorption. However, the original vitamin C, vitamin B and nicotinic acid in milk powder may be destroyed in the production process. Therefore, the nutrients in milk are relatively better. Among them, the content of vitamin C is higher, which is more conducive to promoting human metabolism. But milk powder is easier to preserve, so each has its own advantages and disadvantages. Moreover, milk powder and milk are rich in various nutrients, which are very beneficial to human absorption. Milk powder is made by sterilizing fresh milk, concentrating, spray drying and adding various vitamins. For different people, the nutritional significance is different. Milk powder is made by sterilizing, concentrating, spraying and drying fresh milk. Milk contains almost all kinds of nutrients needed by human body except cellulose, which is easy to digest and absorb. It is a nutritious food suitable for most people. It is worth pointing out that fresh milk is an excellent source of natural calcium because of its high calcium content and high utilization rate. So it is recommended to drink fresh milk every day. Milk powder is made from fresh milk, and there is bound to be nutrient loss during the processing, so the nutritional value of fresh milk is higher. In fact, the best milk powder is added with various vitamins. Full-fat milk powder is made of fresh milk through preheating sterilization, vacuum concentration, spray drying, powder cooling and other steps. Three kinds of people are most suitable for drinking milk powder. Weaning and weaning babies, vitamins, minerals and trace elements, choline, DHA, etc. Adding it to formula milk powder is beneficial to the digestion and absorption of infants. Pregnant women's milk powder will generally strengthen folic acid, vitamin A, vitamin D, B vitamins, zinc, iodine and so on. It can basically meet the nutritional needs during pregnancy. Although fresh milk is rich in calcium and protein, it is low in iron and folic acid. The requirements of middle-aged and elderly people for vitamins and minerals are generally higher than those of normal people, especially vitamin A, vitamin D, vitamin B 1, calcium, phosphorus and iron. Adding immune factors to high-quality milk powder can also help middle-aged and elderly people improve their resistance.