Grapes, hawthorn, pomegranate and persimmon can't be eaten with shrimp. These fruits contain tannic acid. If you eat fruits while eating seafood, these tannins will chemically react with protein, which is rich in seafood, to produce precipitates and condensate. In severe cases, there will be symptoms such as vomiting, abdominal distension, abdominal pain and diarrhea, which will greatly affect the digestive function of the stomach. Therefore, after eating seafood, it is best to eat this fruit containing tannic acid at intervals of more than 4 hours to avoid indigestion.