The mercury content of carnivorous fish is higher than that of grass carp, and that of marine fish is higher than that of freshwater fish. The older and heavier the fish, the higher the mercury content.
Whether it is freshwater fish or marine fish, what we used to eat was pure wild. But it's different now. A large part of the hot-selling freshwater fish are farmed. In recent years, some marine fish have been gradually farmed artificially.
artificial insemination
Because of this, people are very careful when buying fish. Although farmed fish are the same as wild fish, their taste and nutrition are much worse. Small yellow flowers and rhubarb flowers are yellow croaker, although large yellow flowers are cultivated artificially. However, the small yellow flower has not been farmed artificially, so you can buy it with confidence.
Hairtail is the most common marine fish, but it can't be cultured artificially, because hairtail lives in the deep sea, which is very different from the land pressure on the sea surface. He died as soon as he got out of the sea, which is why hairtail was frozen. Although Spanish mackerel is also common, it is not farmed artificially. Because its breeding cost is too high and there is not much profit to make, it is safe to eat.