Modern research has confirmed that milk is rich in minerals, such as phosphorus, calcium, zinc, iron, copper, manganese and molybdenum. Most importantly, milk is the main source of calcium needed by human body, and the ratio of calcium to phosphorus is very suitable, which is beneficial to the absorption of calcium by human body and is one of the best sources of calcium for human body.
1 l fresh milk contains about1250mg of active calcium, ranking first among all foods, almost10/0 times that of rice, 75 times that of lean beef and10 times that of lean pork. Not only the content is high, but also the lactose in it can promote the absorption of calcium by human intestinal wall. Middle-aged women before and after menopause often drink milk to slow down bone loss.
Besides minerals, milk is also rich in other nutrients, mainly protein, fat and lactose.
There are 20 kinds of amino acids that make up human protein, 8 of which can't be synthesized by human body. These amino acids are called essential amino acids. If the protein we eat contains all the essential amino acids, the protein is called holoprotein, and the protein in milk is holoprotein. Protein in milk is mainly phosphorus-containing protein, and also contains albumin and globulin. All three protein contain all essential amino acids.