Cod is delicious and has high nutritional value, which is loved by people all over the world and is also a common food in many fast food restaurants. However, some unscrupulous merchants will use another oily fish to pass off as cod for consumers to eat.
What's more frightening is that once people eat this fish, the body's gastrointestinal function will be uncontrolled, the butt will turn into an "oil gun", and there will be oil out of the body constantly, and embarrassing situations will continue to occur.
As a result, oily fish has been pulled into the food "blacklist" by many countries. So, what exactly is an oily fish? What harm will it cause to the human body? Next, please friends must put away this "pit avoidance guide".
The true face of the oil fish
The scientific name of the oilfish is spiny scale snake mackerel or heteroscale snake mackerel, and heteroscale snake mackerel is also known as jade barracuda and white jade dolphin. As we all know, fish swim in the water and rely on swim bladders to control their sinking and floating. Oil fish inhabit the depths of the ocean, where the water pressure is relatively high, and their swim bladders have been degraded in evolution.
In order to make their bodies buoyant enough, they are wrapped in a thick layer of grease to control the direction of travel in the deep sea. This oil is essentially a natural wax fat called snake mackerel toxin, which accounts for more than 40% of the weight of the oil fish itself, and is actually a compound composed of fatty acids and fatty alcohols.
Oil fish has 20 times more animal fat than cod, and in some industrial fields, oil fish is often used to extract lubricants, which is also one of the main uses of oil fish. In addition, wax grease is also everywhere in our daily life, for example, some skin care essential oils are rich in wax grease, it can be seen that it is not toxin-free.
Some restaurants also label the oily fish as "noble" to attract curious people to taste it. Chefs have also racked their brains to invent various cooking methods, such as seasoning with plants from Provence and frying them in premium olive oil. "Foodies" were attracted by the snow-white and delicate meat quality of the oily fish, and could not resist the temptation of food, and came to check in.
Although these conscientious merchants have announced the "specialness" of oily fish, there are still many bloggers who want to "try the law by example". The end result was that they all lost to the powerful wax fat system of the oil fish, turned into "jet warriors", and even had to wear diapers to prevent oil "side leakage".
Eating oily fish can cause diarrhea
Although wax grease is non-toxic, it is also harmful and unbeneficial to the human body.
When oily fish first enters the mouth, the taste is no different from ordinary seafood, but the stomach can not stand such irritants. The melting point of wax fat is as high as 1000 degrees Celsius, our intestines can not absorb too much wax fat in a short time, and eating too much oil fish will increase the burden on the intestines.
When excess wax fat accumulates in the stomach, stomach cramps occur. When food passes through the stomach to the intestine, because the oil itself is very lubricated, it can slide out of the anus without going through the peristalsis of the intestine, so people will not have a strong feeling. This process is medically known as seborrhea or steatorrhoea.
When people go to the toilet, if the wax fat in the body is not excreted, they will leak out of the anus at an inappropriate time and stick to the pants, bringing bad effects. What's more, the eater will experience symptoms such as dizziness and vomiting in the short term, and may also cause incontinence and need to be treated in the hospital.
However, this symptom lasts only a few days. When the wax lipids in the body are excreted by natural or artificial means, there will be no more major side effects.
A trick to avoid embarrassment
Although oily fish can have a negative impact on our diet, there are ways to avoid this.
First of all, although it is delicious, do not overdo it. Studies have shown that if the amount of one-time consumption is less than 170 grams, it can be absorbed by the human stomach and intestines, and it will be digested in the body.
In addition, the way of cooking is also the key to avoiding "channeling oil". We grill or steam the oily fish, which can also eliminate the oil content of the oily fish to a certain extent.
In fact, the severity of diarrhea is closely related to human constitution. People with good gastrointestinal function rarely have adverse reactions after eating oily fish. People with poor gastrointestinal function have more obvious side effects, and even need to go to the hospital.
Oil fish and cod are similar in appearance, how can we tell the real from the fake?
When we buy cod, merchants often slice or cut off the sale, using "blind methods" to confuse consumers.
From the appearance point of view, the cod sliced area is large, the meat is tender and smooth, the scales are tight and the texture is clear, it looks like a dense needle, and the merchant basically does not remove the scales. Cod is more than 1 meter long, which is also longer than oilfish.
The oil fish is only about 20 cm long, the slice is narrow and long, the flesh is rough and gridded, the color is gray-black, and there is a light yellow or light red line in the middle of the slice.
If you are unlucky enough to buy oily fish home, there is also a way to identify it. After thawing, the skin of cod is very smooth, while the skin of oily fish will be rougher. If it is steamed, the oil fish has a large water output, and the meat is easy to spread out, and the taste is hard, which is likely to be oil fish.
Secondly, the price of real cod is as high as hundreds of yuan per kilogram, if the price is only about ten to twenty yuan, it is likely that there is counterfeiting, such as the common dragon cod, etc., which belongs to oily fish.
Finally, looking at the import logo on the packaging is also an effective way to prevent being deceived. For example, you can choose cod with MSC certification printed on the packaging.
The countries with the strictest regulations on oilfish imports are Italy and Japan, which have banned oilfish. Countries such as the United States and Australia believe that oily fish is toxin-free, but merchants should indicate the harm of edible oily fish and a reasonable amount before selling. According to the standard of consumption in the United States, the one-time intake of adults should not exceed three taels.
However, the mainland does not have strict regulations on the circulation and sale of oily fish, and many merchants sell it as tuna, pomfret and cod in order to save costs.
Because oil fish is rich in wax lipids in the body, it exceeds the carrying capacity of the human stomach and intestines, and it will flow out of the body uncontrollably after eating, and it is also banned from import by many countries.
We can avoid buying oily fish by looking at the shape, touching the meat quality, and checking the security label. In addition, we should eat oil fish in moderation when ingesting, and we must also pay attention to cooking methods. Thanks for reading.