Due to environmental pollution, toxic substances may accumulate in fish. When buying fish, in addition to ensuring the fish itself is fresh, you should also try to avoid buying toxic fish.
Contaminated fish: Toxic fish include those polluted by phenols, heavy metals, or pesticides, as well as fish containing biotoxins. Fish and shrimp with a strong kerosene odor are a result of phenol contamination; Frequently consuming large-sized
ocean fish such as sharks, tuna, swordfish, mackerel, and tilefish can lead to mercury poisoning.
It must be emphasized that pregnant women, breastfeeding women, and women planning to become pregnant should not consume these fish.
Deformed fish: Other types of fish, such as deformed ones, should not be eaten. Fish gallbladders should not be eaten. Dead soft-shelled turtles and eels cannot be eaten.
Fish with parasites: Parasites such as *Clonorchis sinensis* may also be present in fish meat. In addition to thorough washing during preparation, it is important to cook the fish thoroughly.
Salted fish, smoked fish, and dried fish: As they contain carcinogenic substances such as nitrosamines, they should not be consumed in excess. Fried fish, especially burnt fish, contains strong carcinogenic heterocyclic amines, so it is best to eat them in moderation.
Loving fish and knowing how to eat fish will be more beneficial to your health.