Eat what crabs can't drink.
Crab is a cold food and can't be drunk with the same cold drinks, so you can't drink ice water or frozen drinks when eating crabs, otherwise it will lower the temperature of the stomach and intestines, causing abdominal pain or diarrhea.
You can't drink tea water when eating crabs. Tea will dilute gastric acid and solidify some components of crabs, which is not conducive to digestion and absorption of the stomach, and may also lead to abdominal pain or diarrhea.
Drinking beer or red wine is also a big taboo for eating crabs. Beer is also cold, and eating with crabs is also easy to cause diarrhea or abdominal pain, while eating red wine and crabs together may cause stomach discomfort.