Usually, you can eat crabs after drinking milk, but you should consume it in moderation and not too much. Milk is rich in high quality protein and vitamins, calcium, etc. These nutrients help improve malnutrition and promote physical development. Crab contains protein, vitamin B12, unsaturated fatty acids and other nutrients, which can supplement the nutrients needed by the body. Eating crabs after drinking milk generally does not occur adverse reactions, and will not cause harm to the body, so you can eat crabs in moderation after drinking milk. However, due to the relatively high protein content in milk, excessive consumption of milk may increase the burden on the stomach and intestines, leading to indigestion, causing abdominal pain, bloating and other symptoms. Moreover, crab belongs to the food with high protein and purine content, excessive consumption may lead to diarrhea and elevated uric acid adverse reactions, so it should be consumed in moderation. Those who are allergic to the above foods are not recommended to consume them, and if they are consumed accidentally, they should consult a doctor for examination in a timely manner, and under the guidance of the doctor, they should be dealt with accordingly.