Drinking too much milk, more than 1 liter per day, will have the following bad effects on the body: 1, will lead to obesity: milk also contains fat; 2, will increase the burden on the kidneys: because milk is rich in protein, and the excretion of protein requires the participation of the kidneys. If too much milk intake will cause excessive protein intake, increasing the burden on the kidneys, which may cause kidney dysfunction; 3, will lead to imbalance of yin and yang in the body: because from the perspective of Chinese medicine food therapy milk is cold, if too much intake will lead to a cold body, which is not conducive to health.