1, dead fish Most people can't tell the difference between a fish that has been dead for a while and a heavy-flavored dish, but this kind of fish is not fresh, easy to breed parasites and unhealthy to eat.

2. Eel. Monopterus albus is actually a fish with the most parasites. It lives under the mud and is very suitable for the life of parasites. If it is not thoroughly heated, people who eat Monopterus albus may be infected with parasites.

3. Fish in the polluted reservoir. When the reservoir is polluted, the fish will also be greatly polluted. On the one hand, a large number of dead fish are easy to appear, on the other hand, the deterioration of water quality will make the fish in the reservoir more likely to breed parasites.

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