You can eat crabs with alcohol. Alcohol and crabs do not have a special chemical reaction and do not cause poisoning of the body. But drinking alcohol is harmful to health. Alcohol is a class of carcinogen, closely related to the development of oral cancer, stomach cancer, liver cancer and rectal cancer. China’s dietary guidelines recommend that men’s alcohol intake of no more than 25 grams a day, women no more than 15 grams, it is best not to drink. Crab is rich in nutrients, every 100 grams of crab contains 95 calories, 4.7 grams of carbohydrates, 13.8 grams of protein, 2.3 grams of fat, 125 milligrams of cholesterol and 208 milligrams of calcium. Although the nutritional value of crabs is high, cholesterol content is not low and hypercholesterolemic patients need to control their intake. In addition, those who are allergic to crabs and alcohol should be strictly prohibited from drinking and eating crabs.