Drinking milk in moderation over a long period of time is generally not harmful to the body, but excessive consumption may cause indigestion, unbalanced nutritional intake and other adverse effects. In general, a moderate daily consumption of milk is not harmful, on the contrary, it can also supplement the body’s protein and trace elements, the body’s health is a certain benefit, it is recommended to drink a moderate amount of daily. However, if you drink too much milk every day, or milk alone as a source of nutrients, this situation may cause a burden on the body’s gastrointestinal tract, dyspepsia, nausea, vomiting, diarrhea may occur after drinking milk, but also make the body’s intake of nutrients is not comprehensive, the lack of other vitamins and other nutrients. People who are allergic to milk proteins should avoid drinking milk as much as possible.