Salmon is a deep-sea fish, which carries fewer parasites, and most of the parasites in the body cannot exist in the human body for a long time, so salmon is one of the best choices for many countries to eat raw. Salmon has been gradually known to the public in China in recent years, as long as it is eaten from Japan. Japan is the country that eats the most salmon, and it has also created a variety of unique delicacies in the way of eating salmon, such as salmon sushi and so on. Salmon, also known as salmon, salmon and so on, grows in the deep sea, so there are relatively few parasites compared with freshwater fish. Parasites in salmon are mainly anisakis. In the preservation of salmon, they are all kept fresh by low-temperature freezing. If salmon is kept in a low-temperature environment for more than a week before use, parasites generally will not survive. Furthermore, most of the salmon comes from Norway, which is a high-latitude region with low temperature all the year round, so it can be said that it is a unique geographical environment for low-temperature preservation. Salmon can stimulate its flavor to the greatest extent because of its meat quality and other reasons. However, salmon is not only eaten raw, but also made into cooked food. High temperature will kill parasites, but many people still prefer to eat it raw. However, in recent days, some foreign media have exposed the dark inside story of salmon farming in Norway. As we all know, Norway is the most important country for salmon farming and a big country for salmon export and production. Norway can earn about 50 billion euros in sales by relying on salmon every year. In-depth investigation by foreign media found that the environment of Norwegian salmon breeding base was harsh, with tens of thousands of salmon raised in a small square breeding base, and the fish even festered. A few days ago, some people detected shocking substances in the chopping board of salmon imported from Norway. Therefore, at this critical juncture, it is best not to eat raw food, even salmon with fewer parasites.