Milk is mainly composed of 87.5% moisture, 3.5-4.2% fat, 2.8-3.4% protein, 4.6-4.8% lactose and 0.7% inorganic salt. There are 20 kinds of amino acids that make up human protein, of which 8 kinds can't be synthesized by human body itself (9 kinds in infants, and histidine is more than that in adults). These amino acids are called essential amino acids. If the protein we eat contains all the essential amino acids, this protein is called total protein. Protein in milk is full protein, so the nutritional components of milk are very suitable for human needs.

Second, most babies before the age of one cannot drink milk.

Baby formula is specially prepared according to the baby's growth needs, but some mothers will worry that the ingredients of formula are not natural enough and hope to give their baby milk. However, using fresh milk instead of formula milk powder does not meet the baby's growth physiological needs. Because protein contained in fresh milk is not only difficult for babies to digest, but also very easy to cause galactorrhea and constipation. Protein in formula milk powder is whey protein, so it is not easy to have similar problems. In addition, the mineral content in milk will increase the burden on the kidneys for the baby. Therefore, children should try not to drink fresh milk before 1 year-old to avoid self-defeating.

Third, the problems that need attention when drinking milk

Never expose milk to direct sunlight. Because the nutritional factors in milk will react chemically under the action of sunlight. Milk that has been exposed to direct sunlight for more than 2 hours is likely to have begun to deteriorate. At this time, drinking milk is actually harmful to the human body. Therefore, when drinking milk, we must pay attention to avoid direct sunlight for a long time.

In short, although milk is good for the body and can supplement the nutrients needed by the body, you should also choose milk suitable for your physical condition to drink. If you want to give children milk, you must choose milk suitable for their physical development. Because the intestinal function of children is not perfect enough, it is necessary to choose children's dairy products reasonably.