Milk is a food, there is no such unified definition of the division of common food flavor, and there is insufficient evidence, so there is no milk is cold or hot. Milk is the common name for cow’s milk, with high nutritional value, such as every 100g of milk contains about 3g protein, 3.2g fat, 3.4g carbohydrates, 109mg of potassium, 104mg of calcium, 57mg of chlorine, 73mg of phosphorus, 37mg of sodium and a small number of other vitamins of various types of components, can provide the body with about 66kcal of energy. It should be noted that milk contains more lactose, so lactose intolerant people should not drink, so as not to cause abdominal pain, diarrhea and other gastrointestinal discomfort. In addition, people who are allergic to milk should be prohibited from drinking it, except for the special people mentioned above, the general population can drink it in moderation.