1. Grilled fish
Every summer evening, street lamps flashing with grilled fish can be seen everywhere, and large and small stalls are crowded. The fragrance of grilled fish attracts people's taste buds and makes passers-by stop smoking and swallowing. But in fact, eating too much of this delicious grilled fish will do harm to the human body. We all know that fish is rich in protein, but in protein, the high temperature of more than 200 degrees will produce carcinogenic heterocyclic amines, and experiments show that the heterocyclic amines produced by frying and grilling are obviously higher than those produced by stewing, boiling and stewing. And spicy, high-salt, heavy-flavored grilled fish can't tell the freshness of the fish itself when eating. If the fish is not fresh, eating bad grilled fish is even worse for your health.
2. Pickled fish
The production of salted fish is also very simple, that is, salted with a lot of salt, but salted with a lot of salt will do great harm to human body. Studies have shown that a large amount of nitrite will be produced during the salting process of salted fish. If these nitrites are ingested by the human body in large quantities, they will be converted into nitrosamines in the acidic environment of the gastrointestinal tract, and nitrosamines have a strong carcinogenic effect, which is likely to cause esophageal cancer and gastric cancer.
3. preserved fish
In the south of China, many people like to cook salted fish and smoke it. Although salted fish tastes good, eating too much will be harmful to your health. Related research shows that the fat content and cholesterol content in preserved fish are high, and saturated fat and cholesterol are "risk factors" leading to hyperlipidemia. Then the nutrition of preserved fish is not high, because in the process of making preserved fish, many vitamins and trace elements are almost exhausted, and the contents of vitamin B 1, vitamin B2, nicotinic acid and vitamin C are all zero. It is no exaggeration to say that preserved fish is a kind of food with double nutritional imbalance. This double imbalance is very harmful to our health.
4. Fried fish
Fried food is inherently unhealthy. Fried food not only has high oil content, but also loses a lot of nutrients and increases the risk of cancer. Relevant research shows that omega-3 fatty acids in food are easily destroyed by high temperature during frying, and cooking methods such as high temperature frying and long-term frying can also produce a variety of toxic and harmful oxidative polymerization products in edible oil. Secondly, related research also shows that eating fried fish and fried fish often increases the risk of heart disease.
5. Dead fish
After the fish dies, it will deteriorate quickly, and there are a lot of bacteria in its skin and internal organs. After the death of fish, the rotting corpse provides a place for flora, so that bacteria can multiply and produce in large quantities. So it is healthier to buy fresh fish when buying fish.
6. Poisonous fish
In daily life, most of the fish we buy are common, but some people eat some poisonous fish by mistake for freshness, such as puffer fish, marlin, poisonous soap fish, poisonous stone fish, wasp fish, poisonous leopard toad fish, saber fish, parastickleback fish, rockwell stickleback fish and so on. Be sure to distinguish clearly when eating.
Therefore, when we eat fish, we must choose the correct processing method and try to choose the cooking processing method, which can not only ensure a healthy diet, but also ensure that the nutrition of fish is absorbed by us.
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