Milk is rich in nutritional value, containing high-quality fats, proteins, a variety of minerals and certain vitamins. 1. Fat, protein: every 100 grams of milk contains 3 grams of high-quality protein and 3.2 grams of high-quality fat, these high-quality proteins and fats will be converted into the body’s energy needs. 2. Mineral elements: milk contains calcium, iron, zinc, phosphorus and other trace elements, including 104 mg of calcium, 0.3 mg of iron, 0.42 mg of zinc and 73 mg of phosphorus per 100 grams of milk. 3. Vitamins: every 100 grams of milk contains 1 mg of vitamin C, as well as a certain amount of vitamin B, which can provide nutrients for the body. Milk is rich in nutrients, easy to absorb, is an indispensable natural food, in addition to milk lactose content is high, for lactose intolerance and milk allergy should not be consumed.