Drinking the right amount of milk can provide nutrients and protein. Excessive consumption of milk can cause obesity and so on. 1. The benefits of drinking milk: milk is a source of high-quality protein, containing the eight essential amino acids needed by the human body, every 100 ml of milk contains about 3-4g of high-quality protein, which is easy to be digested and absorbed by the human body. It is easily digested and absorbed by the human body. Moreover, milk is rich in a variety of vitamins and minerals. The calcium-phosphorus ratio in milk is suitable, which is the best source of calcium supplementation, and can promote bone development and maintain bone health, which is one of the best choices of calcium supplementation for children, pregnant women and the elderly. In addition, the tryptophan in milk can be converted into 5-hydroxytryptamine and melatonin, which can help you sleep. 2. The disadvantages of drinking too much milk: Excessive consumption of milk can lead to excess nutrients, which can be converted into fat and cause obesity. Excess calcium needs to be excreted through the kidneys, increasing the burden on the kidneys. Milk is good for the human body, but it should be consumed in moderation to avoid some adverse consequences. People who are allergic to milk should not drink it.