It was not cleaned and seasoning was added by mistake. There are many blood streaks in the Qingzhan fish meat, which usually turns white when cooked. Heating will denature the protein in the fish and turn the fish white. Qingzhan fish is a lean meat type, with 100 grams of fish containing less than 2 grams of fat, while 100 grams of sausage contains more than 10 grams of fat. Even the oiliest Norwegian salmon has half the calories of a pork chop. Fish is also an important source of protein. Fish meat is easily absorbed by the human body. 100 grams of fish meat guarantees half of the protein required by the human body every day. Fish meat also supplies vitamins A, D, E, etc. needed by the human body.