Taboos for eating fish:
First of all, the fish is not cooked.
Eating undercooked fish may lead to parasitic infection. When cooking fish at home, please make sure that the fish is easy to peel, the meat is fresh and tender, and the meat has no translucent signs. Don't put uncooked fish with other foods to avoid cross-contamination.
Second, over-frying
Frying fish may also increase the mercury content of fish. Overfried fish, or sauces with high fat and calories, will soon become an unhealthy diet. Now is not the time to eat fish.
3. Fish with high mercury content
Most fish are slightly polluted by mercury, and most healthy adults have no problem decomposing trace mercury. But pregnant women or lactating women and children should avoid eating some fish and shellfish to reduce the harm of mercury poisoning.
Larger fish have the highest mercury content, such as sharks, swordfish, mackerel and square head fish. For most people, it is best to try to avoid eating these fish. You can choose to replace them with other fish and shellfish with lower mercury content, such as shrimp, cod, canned tuna, salmon and catfish.
Extended data:
Precautions for eating fish
1, the fish is too red and white to eat. Because of the different kinds of fish, there are red-fleshed fish such as tuna and white-fleshed fish such as hairtail, but if the color of fish is too bright red or bright white, it is probably the "credit" of dyes.
2, the head is "eight points big." The size of a fish determines its taste and safety. Too small, the fish has not grown up and matured, the meat is not tender enough, and fishbones will come out. Too big means that the fish is old and the meat is rough, and many harmful substances may accumulate in the body. Therefore, it is more appropriate to buy fish with the size of "eight points". For example, 1.5 kg is suitable for carp and Wuchang fish, 0.5 kg ~ 1 kg for crucian carp and 4~5 kg for grass carp.
3. Don't buy fisheyes with muddy and collapsed gills. When buying "chilled fish", you should first observe its eyes and gills. Fresh fish have full eyeballs, clear corneas and bright gills.
The eyeball of fresh fish is not full, the cornea is slightly turbid, sometimes the blood red in the eye and the dark gray red or gray purple in the gills. Rotten fish eyes collapse or shrivel, cornea atrophy or rupture, and gills are brown or grayish white.
Now kill the live fish and put it in to eat. The quality of freshly slaughtered fish is not the best, because fish will have a process of "acid discharge" and it will take some time to be more delicious. Small fish such as grass carp and silver carp should be refrigerated immediately and cooked after 2 hours; Big fish need to be refrigerated for more than 2 hours.
Don't choose the wrong color of water in the water tank. Buying live fish in the supermarket depends on the "water color". Because it reflects the quality of water, if it is dark green or blue, it may be that there are too many algae, which means that the water has not been changed and the water tank has not been cleaned for a long time, which may affect the health of fish. The fish in a clear and flowing water tank are generally more vivid.
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