The first nutritional value of drinking a glass of milk is that it can provide the body with abundant calcium, which can play a significant role in preventing osteoporosis, preventing back and knee weakness, back and leg pain. The second nutritional value of drinking a glass of milk is to provide the body with high-quality protein, improve the body’s immunity and prevent muscle wasting disease is also very obvious. The third nutritional value of drinking a glass of milk is that it can produce fluid and moisten dryness. From the perspective of Chinese medicine, milk is sweet and slightly cold, and has a good effect of producing fluid in the mouth and relieving dryness in the body. So thirst, poor fluid, yin deficiency fire, red eyes, a glass of milk has a good value to relieve the above symptoms.