The benefits of drinking milk in moderation at night is to supplement the protein and other nutrients, at night if excessive drinking milk may cause obesity, increase the burden on the kidneys and so on. Milk contains 2.8% to 3.3% protein, carbohydrate content of 3.4% to 5.4%, fat content of 2.8% to 4.0%, but also contains a certain amount of riboflavin, vitamin B ₁ ₂, vitamin B ₆ vitamins and calcium, iron, phosphorus and other minerals. Drinking milk at night in appropriate amounts helps to replenish the nutrients metabolized by daytime activities and maintains the normal physiological functions of the body. Most people drink milk at night in moderation is no harm, but note that it is not recommended to drink a lot, so as not to lead to the conversion of calories into fat, long-term so will cause obesity. At the same time, drinking a lot of milk needs to be metabolized by the kidneys, which will increase the burden on the kidneys. Although drinking milk at night has many benefits, it should be consumed in moderation to prevent damage to the body. Those who are allergic to milk should not ingest milk. Those who are intolerant to lactose can choose comfort milk, lactose-free milk powder or yogurt.