Milk contains protein, fat, lactose, calcium, vitamins and other nutrients, and has high nutritional value. Milk is an ideal source of calcium in food and is easily absorbed by human body. Drinking milk for a long time can supplement the calcium needed by the human body and prevent osteoporosis.

Milk contains a variety of amino acids, which is an important source of high-quality protein for human body. Milk is rich in vitamins, such as vitamin D, vitamin B2 and vitamin B 12. Drinking milk properly can also supplement the vitamins needed by the human body. Drinking warm milk in moderation before going to bed is helpful to improve sleep. Because milk contains a certain amount of fat, it will also produce a certain amount of heat. If you drink too much before going to bed, it will easily lead to too much total energy, which is not conducive to weight control.