Why can't cod skin be eaten?

Many friends still like to eat cod, but they don't like cod skin. They think that cod skin is not nutritious and tasteless. I don't think cod skin can be eaten.

In fact, cod skin can be eaten, and rich in collagen, good collagen powder is made from cod skin. Although not as smooth as the meat of cod, it is also very fragrant and greasy.

Because of its important edible and economic value, cod is one of the largest fish caught in the world, while there are only three real species of cod: Atlantic cod, Greenland cod and Pacific cod.

Cod is widely distributed in the world's oceans and originates in the cold waters of the North Atlantic from northern Europe to Canada and the eastern United States. At present, the main producing countries are Iceland, Canada, Russia, Norway and Hokkaido, Japan. In China, cod is mainly found in the Bohai Sea, the Yellow Sea and the northern East China Sea. its main fishing grounds are in the north of the Yellow Sea, east-southeast of Shandong High Angle, and in the south and southeast of the sea. It is one of the marine economic fish species produced along the northern coast.

Cod meat is delicious and nutritious, which can activate blood circulation and dispel addiction; swim bladder can tonify blood and stop bleeding; cod bone can treat beriberi; cod pancreas contains a lot of insulin and 12000IU insulin can be extracted from 1kg pancreas; cod liver can be used to extract cod liver oil (oil content 20% to 40%)