The cheap cod on the market is not real cod, but a close relative of real cod, so it will be cheaper. Some. Real cod because of its delicate meat firm, sweet flavor, rich in a variety of nutrients, known as "gold in the sea". Cod is a kind of deep-sea fish in the ocean. It likes to live in cold water at low temperatures. The main reason is that it is naturally antifreeze because they have special antifreeze proteins in their blood. As a food, cod meat is very tender and has a high nutritional value. Most importantly it tastes great, which makes cod a favorite seafood for humans.