Doctor's tip: Five kinds of fish, or 'hotbeds' of formaldehyde and heavy metals, do you like to eat them?
As the saying goes: It is better to eat two legs than to eat four legs, and it is better to eat two legs than to eat two legs. Food without legs, the most representative is - fish.
Fish are very popular in life, there is an old saying that there is no feast without fish. When entertaining guests, a fish is usually prepared. Fish is delicious and helps to build up your physique.
Fish is rich in nutrients, rich in high-quality protein, easy to digest and absorb, low in fat, and also contains calcium, phosphorus, potassium, iodine, zinc, selenium and other inorganic salts, as well as vitamin A, vitamin D and B vitamins.
Fish are dark. There are several types of white meat. Dark meat contains more lipids. glycogen. vitamins. enzymes, etc. , and the taste is very fishy, such as tuna has a light fishy smell, such as large yellow croaker and flounder.
The effects of eating fish properly are as follows:
- Reduce the incidence of cardiovascular and cerebrovascular diseases, because fish is rich in polyunsaturated fatty acids, which can inhibit the aggregation of platelets in the blood, reduce blood viscosity, and prevent chronic metabolic diseases such as atherosclerosis, coronary heart disease, and myocardial infarction;
Educate the brain and improve the ability of quick thinking, because the polyunsaturated fatty acids in fish can promote the metabolism of the nervous system, prevent and alleviate Alzheimer's disease and the decline of thinking ability;
Supplement trace elements, such as zinc, selenium, iron, manganese, etc. As an important part of enzymes and coenzymes in the body, these trace elements play an important role in promoting the smooth progress of biochemical metabolism in the body.
Fish itself is very rich in nutrients and is more conducive to strengthening the body, but not all fish are suitable for regular consumption, especially the following types of fish, I hope you still eat less, otherwise there may be serious consequences.
Doctor's tip: five kinds of fish, or a hotbed of formaldehyde and heavy metals, do you like to eat?
Large carnivorous fish in the deep sea.
Nowadays, people's diet is getting richer and richer. They no longer only pay attention to food and clothing, but want to eat fresh ingredients. If they can know what others have not eaten, they will naturally feel proud.
For large deep-sea fish such as salmon and sharks, many people have eaten them. Put the love aside and don't talk about these big fish due to the potential for heavy metal excess.
Big fish usually live at the top of the marine life chain, mainly all kinds of small fish and marine life. If the harmful substances in the body continue to increase, it is more likely to cause heavy metals such as mercury and lead to seriously exceed the standard, and frequent intake in the body is more likely to bring various health threats.
Overweight fish.
The fish bought in life are basically freshwater fish, about two kilograms, and generally more than 4-5 pounds of fish are relatively rare. Some people think that the heavier the fish, the richer the nutrients.
But the fish with too much weight is relatively large, of course, the age is relatively high, the fish meat is relatively old, not only does not taste good, but also has a relatively long survival time in a reasonable way, and the accumulation of heavy metal substances in the body is relatively high.
If fish live in polluted environments for a long time, they can also undergo cellular mutations that lead to huge body sizes. Although they do not have much effect on consumption, if they accumulate harmful substances in the body for a long time, they can bring about diseases.
Flavored fish.
The vitality of fish is very tenacious. They can still survive in harsh environments. Fish can contain a variety of harmful substances when they are grown in an environment contaminated with heavy metals. If they are sold by merchants, it is easy to damage their health.
If you notice a smell of kerosene when you buy fish, you may be contaminated with phenolics in the water. The entry of this fish into the body also increases the risk of disease due to water pollution from factory discharges.
The appearance of some fish may be affected. At this time, they will choose to soak in formaldehyde, mainly to make the fish look fresher and more welcome. If you buy this fish and eat it into your body, it may threaten your health and affect your health.
Sashimi like salmon.
Some people prefer to eat sashimi, such as salmon. The meat is more tender and tastes good, but the fish is not fully mature and can be contaminated with parasites.
It can also infect harmful bacteria that enter the body, causing serious damage to the digestive system and even increasing the risk of cancer. (Severe cases of liver fluke disease can induce liver cancer.
China's sashimi disinfection technology is not particularly strong. If you regularly eat barium to produce contaminated sashimi, it may affect brain function or threaten the proper functioning of various organs.
wild fish.
Many people believe that wild fish has higher nutritional value. Many wild foods can meet the body's needs, but wild fish is still not recommended for regular consumption because the fish is likely to be contaminated.
Wild fish and living environments are relatively complex, and if they are really contaminated by certain chemicals, they may bring various health risks.
If you usually like to eat fish, it is recommended that you go to regular places to buy, don't be greedy for petty cheap, and don't buy low-quality fish, otherwise the harm is unimaginable.
Can liver cancer patients eat fish?
Liver cancer patients can eat fish. Liver cancer is the most common malignant tumor of the liver, and its incidence is mainly caused by hepatitis B virus infection or aflatoxin damage to liver cells.
As an important organ of the human body, the liver's main functions are to synthesize human albumin, synthesize coagulation factors, synthesize and secrete bile, and detoxify.
Therefore, the dietary requirements of patients with liver cancer are high-protein, low-fat foods, and avoid greasy, spicy, and irritating foods, so as not to increase the burden on the gastrointestinal tract and cause discomfort to the patient. Liver cancer patients can eat fish as a high-protein, low-fat food.
After liver cancer patients eat fish, it can enhance the nutrition of patients and improve the resistance of patients. Immunity, but when liver cancer patients eat fish, try to steam as the main method, and avoid spicy and irritating cooking, so as not to increase the burden on the gastrointestinal tract and cause abdominal discomfort.