Normal people can drink milk after eating crab, and the ingredients of both crab and milk do not react. In addition, from the perspective of Chinese medicine, crab is cold and milk is flat, and they do not conflict with each other. Crab is nutritious and tasty, and contains unsaturated fatty acids that help lower serum cholesterol levels, which is good for cardiovascular disease. Moreover, crab is a low-sodium food, which is more favorable for people with high blood pressure. However, the protein content of crab is high, and a large amount of it at one time can easily cause indigestion, so patients with digestive disorders should not consume large amounts of crab, and it is not recommended to drink milk after eating crab to avoid aggravating the symptoms of indigestion. It is also important to understand that crab has a high purine content and is not recommended for gout patients. In addition, because milk contains proteins, lactose and a variety of vitamins and minerals, and small molecular weight, easily absorbed by the body, fasting or large mouth to drink easy to improve the efficiency of gastric peristalsis, will cause the milk in the stomach for a short time, making it impossible to absorb nutrients well, and even indigestion. Therefore, normal people can drink milk after eating crab.