Text: Jiang Qingtong
Editor|Jiang Qingsheng
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Preface
In China, there is a saying that "no fish is not a feast", whether it is a banquet or a meal between friends, a delicious fish is definitely indispensable.
The fish itself is also very delicious, both in meat quality and nutrition, and even has a certain impact on intelligence and eyesight.
This is also the reason why many parents like to give their children fish to eat, but you must be vigilant when buying fish, the following four kinds of fish, not only can not supplement nutrition, but may even cause cancer, come and see if you have been hit!
Formaldehyde covered in fish, do you dare to eat it?
Many families in the north will fry the hairtail during the New Year, which is already a tradition, and there will be a lot of merchants selling hairtail before the New Year, but for these hairtail fish must be carefully selected, because if you are not careful, you will buy formaldehyde fish!
We all know that hairtail fish live in the deep sea, and when they are caught, there is a 99% chance that they will die due to air pressure.
The hairtail we eat basically dies when they go to sea, which makes it very difficult to store the hairtail, but there are many unscrupulous merchants who do not hesitate to soak the hairtail fish in formaldehyde in order to store it for a longer time.
The harm of formaldehyde is believed to be known to everyone, formaldehyde has a strong sterilization and antiseptic effect, and even has the effect of preservation and color, and adding to aquatic products can extend the shelf life and increase color.
The protein of the hairtail fish soaked in formaldehyde will deteriorate, and even the meat will lose its elasticity and splend, becoming very brittle, which also causes the hairtail soaked in formaldehyde to twist or explode like a flower when encountering high temperatures.
This also allows us to better distinguish whether the hairtail we buy has been soaked in formaldehyde, and the hairtail that has been soaked in formaldehyde has a very high chance of causing cancer after eating.
Therefore, when buying hairtail, you must be careful to distinguish, but the hairtail that has been soaked in formaldehyde is also very easy to distinguish, and there is a layer of silver grease on the hairtail, which looks very good.
This layer of silver grease on the normal hairtail fish will not fall, but it is different if it has been soaked in formaldehyde, this layer of silver grease will fall off as soon as it is touched, so we should be vigilant at this time.
In addition to this, the eyes of the hairtail fish are cloudy and white, and the gills of the fish are collapsed, these are the characteristics of formaldehyde hairtail, in the face of these characteristics of the hairtail, do not buy, and some are not distinguished, it can also be found when the hairtail is fried, after all, the normal hairtail will not be fried and rolled up.
Silver carp, gall is highly poisonous
Silver carp people who like to fish may often see it, after all, in the fish pit, these silver carp are swimming leisurely on the water surface, and even directly not afraid of people, which makes many people wonder why no one catches these silver carp?
In fact, silver carp belongs to one of China's "four major fish", and it is also the most common freshwater fish in the mainland, you must know that this fish is not only delicious, but even the price is very cheap, which makes it very popular, and even the size can grow very large.
But now few people will buy silver carp in the market, basically they are replaced by carp and grass carp, which is actually very easy to understand, the meat quality of silver carp itself is not a problem, but the stale silver carp has a very large earthy taste, which also makes the process of processing and making very complicated.
Therefore, few people now go to buy silver carp, and now the problem of silver carp breeding is also very serious, you must know that silver carp is a kind of fish that eats everything, and it is very simple to raise.
But this also leads to the fact that the body of silver carp is actually very dirty, this fish is notoriously not picky eater, and it is precisely in this way that the breeding of silver carp can be said to be very simple, and even many of the purpose of breeding silver carp is to let it purify the water quality.
Because he is a fish on the water, he will swallow all the remnants of feed or algae on the surface of the water, as long as he does not starve to death, everything is easy to say.
What's even more terrifying is that now many farmers in order to make the growth rate of silver carp faster, directly on the fertilizer, which is simply "invincible", but the silver carp actually makes a good meal, who dares to eat too much carcinogens of fish.
And now the vendors directly mix the silver carp and the silver carp to sell together, so that many consumers can't tell the difference between the silver carp and the silver carp, and finally go home to eat the silver carp and don't know.
What's more, the gallbladder of silver carp is highly poisonous! If you don't pay attention to cleaning up, the consequences can be devastating, especially if some people accidentally cut the guts of the fish when handling it.
It's terrifying, so don't eat silver carp for the sake of your health, but if you really like it, be sure to buy it from a regular place.
And you must be extremely careful when handling it, after all, you still have to be careful not to cut the internal organs, otherwise the fish may really not be eaten.
Is wild fish really fresh?
Wild fish is delicious, which I believe many people have heard, and many Chinese believe that wild animals are more delicious and nutritious than captive.
Of course, wild fish are among them, so many people will fish in rivers and lakes to eat at home, but this is obviously a very dangerous behavior.
You must know that the water pollution is very serious now, and these wild fish do not know what they eat every day, and it is even very likely that they will eat poisonous substances.
And when this kind of fish is caught, it is not known whether it has eaten poisonous substances in its body, and even poisonous algae are still under the water.
Fish are plagued by these toxins for many years, and the end result is that these toxins accumulate in the fish's body, and then the health of people will be affected after eating these kinds of fish.
And many fish in the wild have parasites, we must know that many animals in the wild contain parasites, they do not want to be artificially raised in the wild as regular deworming, many people will find that there are worms in the mouth of the fish after fishing wild fish home.
In fact, it is a parasite of fish, and even in the scales of fish there are things like small worms, these are also parasites, when such a situation is found, this kind of fish must not be eaten again.
Sashimi and parasites
Japan's love of eating sashimi has been well-known all over the world, and with the entry of culture in China, many people have gradually begun to like to eat sashimi, after all, sashimi has a delicate taste, and many people think that sashimi is better than cooked fish.
This is actually a thousand people's tastes, but there is a misunderstanding that I believe everyone has heard, that is, marine fish do not have parasites, in fact, this is completely wrong.
In fact, marine fish also have parasites, Anisakis is a kind of nematode, this nematode can infect a lot of marine fish, whether it is salmon or tuna, and even moray eels are very easy targets for infection.
Whether it is salmon or tuna, it is the first preference of people who like to eat sashimi, but at this time, if you eat sashimi infected with parasites, it will cause gastrointestinal discomfort, abdominal pain, bloating and even diarrhea.
The U.S. Food and Drug Administration stipulates that raw fish needs to be frozen at minus 35 degrees for 15 hours or minus 20 degrees for 3 days to kill the parasites.
But what is circulating in our country is wasabi or vinegar or even soy sauce, which can be sterilized and sterilized, which obviously has no effect on infected sashimi.
Therefore, it is better to eat less sashimi, and eat it after the fish is cooked, after all, the danger of parasites is uncertain, and it is better not to try it lightly if it is harmful to health.
And now that Japan is polluting the oceans by the things they are putting into the sea, there are problems in many of their seas, so they still have to think twice about eating raw food.
How to eat fish healthily
Of course, eating fish does not mean that all fish cannot be eaten, it is still necessary to eat fish healthily, the first is to choose fish, we must eat fresh fish when we eat fish, the first is to look at the scales of the fish.
If there is no shedding or even clear mucus, then the fish is healthy, but if the mucus is cloudy and the scales are shedding, then the fish should not be considered.
The second is to look at the gills, if it is fresh then the gills are bright red, and it is very fresh to look at, if not, then the fish is definitely not fresh.
In 2016, the dietary guidelines for Chinese residents have given recommendations for eating fish, and it is normal for ordinary people to consume 40 to 75 grams of fish and shrimp per day, but the mainland only consumes an average of 23.7 grams per day, which is obviously a bit different from the recommendation.
Therefore, it is still possible to eat fish appropriately, but it is not recommended to eat it if you are ventilating, and the cooking method is mainly steamed and boiled, mainly to retain the original taste of the fish.
epilogue
It is true that eating fish is beneficial, but it is necessary to eat and choose healthy fish properly, otherwise it is very likely that the benefits will not be obtained in the end, and in the end there will be health affected, which will outweigh the losses.
Refer to the article
Guangxi CDC May 12, 2024 "Delicious Yusheng, Beware of Disease "Worms" in the mouth! ".
Chengdu Association for Science and Technology, March 19, 2020 "Some people say that silver carp is not delicious, but why do so many people still raise it?" ".
Shangguan News, June 15, 2023 "There are many benefits to eating fish, but these 3 kinds of fish must not be eaten!" ".
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