according to today's headline data, the pollock is not an oily fish. Most of the cod fillets and pieces in the market are fine-scaled and strong cod, not the traditional cod. Although there is a big gap with cod, it does not affect the consumption. Oil fish looks very similar to cod, but it is not suitable for eating, because oil fish itself contains more than 4% wax ester, which is difficult for human body to digest and will cause serious diarrhea.

Most of the cod fillets and pieces bought in the market are fine-scaled cod, not traditional cod. Only Pacific cod, Atlantic cod and Greenland cod are the real cod. Thirty or forty yuan of "people-friendly cod", the species are fine-scaled strong cod, yellow-line narrow cod and long-headed tail cod; The high-end "silver cod" includes leatherhead Antarctic fish, small-scale canine Antarctic fish and naked-covered fish.