1. Raw seafood should be frozen and watered with light salt water. Oysters and some aquatic shellfish often have a "Vibrio vulnificus" bacteria. Eating raw seafood is potentially fatal for people with poor intestinal immune function. American researchers found that putting oysters on ice first and then pouring some light salt water can effectively kill such bacteria, so it is safer to eat them raw.

Seafood is not suitable for drinking beer. Drinking a lot of beer while eating seafood will produce too much uric acid and cause gout. Excessive uric acid will be deposited in joints and soft tissues, leading to joint and tissue dysplasia.

3. Arthritis patients eat less seafood. Because sea cucumber, marine fish, kelp and seaweed contain more uric acid, uric acid crystals can be formed in the joints after being absorbed by the human body, which aggravates the symptoms of arthritis.

Don't eat seafood with some fruits. Fish and shrimp are rich in nutrients such as protein and calcium. If eaten with fruits containing more tannic acid, the nutritional value of protein will be reduced, and calcium in seafood will easily combine with tannic acid to form new indigestible substances. Fruits with more tannic acid include persimmon, grape, pomegranate, hawthorn and olive.

5. Shrimp should not be eaten with vitamin C. American scientists have found that eating aquatic crustaceans such as shrimp and taking a large amount of vitamin C at the same time will cause death, because arsenic, which is usually considered harmless to the human body, will be converted into toxic arsenic under the action of vitamin C.