It is not absolute that there are few parasites in marine fish. Different marine fish may have different degrees of parasitic infection. However, some common marine fish, such as tuna, cod and grouper, are usually clean and less infected by parasites. In addition, deep-sea fish are generally less infected by parasites than freshwater fish, because deep-sea fish usually live in a cleaner environment and have a lower risk of being infected by parasites.

It should be noted that even though marine fish are usually clean, in order to ensure food safety, it is suggested to take some preventive measures during the processing and cooking, such as cleaning, cooking and so on. At the same time, for some marine fish that may be infected by parasites, such as oysters, scallops and other shellfish, special attention should be paid to food safety to avoid eating raw or half-cooked.

In short, when choosing marine fish, it is suggested to choose fish with reliable quality and reliable source, and take some basic food safety measures to ensure their health and safety.