Sunflower seeds grow faster, so absorb more heavy metals, eat more risk of liver cancer; chewing gum aspartame is a carcinogen; liver is a detoxification organ, will accumulate a large number of metabolic poisons, so can not eat ... these days A "ten black list of cancerous foods" has been repeatedly transmitted on WeChat and Weibo. Many middle-aged and elderly people and even young white-collar workers are fearful of the cancer-causing foods they tell about. The reporter interviewed nutrition experts and oncologists in Shanghai. The doctors said that this list is not scientific enough to be misleading to the public.
1, sunflower seeds:
Few daily health benefits
Spoiled spit
â– Reasons for listing:
Because of its rapid growth, sunflower is easy to absorb heavy metals such as lead, cadmium, and nickel. It can effectively reduce heavy metal pollution in soil and has the ability to purify the environment. It is the best landscape green manure crop. However, people eat these heavy metals are harmful to the body, and eat sunflower seeds will consume a lot of choles, make the body fat metabolism disorders, leading to the accumulation of large amounts of fat in the liver, will seriously affect the function of liver cells.
â– Doctor analysis:
Gao Jian, director of the nutrition department of Zhongshan Hospital, Fudan University, said that it is not scientific to judge whether a plant can eat from the growth rate. The growth rate of various foods, vegetables and mushrooms far exceeds that of sunflower seeds, and its ability to adsorb heavy metals is even greater. The key to avoiding heavy metals is to purify the land, otherwise any plant that grows on it will be “poisonousâ€. At the same time, the high director said that peanuts, almonds, cashews, and pistachios, including sunflower seeds, are all nut foods, and they consume a small amount of healthy food every day. However, it is important to remind that nuts are susceptible to oxidative rancidity and mildew. If you taste bitter and musty taste when eating, you must spit it out and rinse your mouth.
Dr. Long Jiang, deputy director of Pancreatic Hepatobiliary Surgery at Fudan University Affiliated Tumor Hospital and executive deputy secretary-general of the Shanghai Anticancer Association, said that aflatoxins in spoiled nuts are already proven strong carcinogens and should be avoided as much as possible.
2, chewing gum:
Food additives
Not all "tigers"
â– Reasons for listing:
Although the natural rubber in chewing gum is not toxic, the white plastic used in the production process is added with additives such as a vulcanization accelerant and an anti-aging agent to stimulate the stomach and cause discomfort. The sugar substitute aspartame in chewing gum is also a carcinogen.
â– Doctor analysis:
Chewing gum will contain certain additives and sugar substitute aspartame, but as long as a person does not get into the pound every day, there will be no security risks. However, doctors do not recommend chewing gum for more than 20 minutes because too much chewing can cause oral muscle strain.
Long Jiang said that unlike some substances that have been confirmed to be carcinogenic, such as aflatoxin and nitrite, some additives are still at the stage of possible carcinogenic or suspected carcinogenicity, but food additives are safe as long as the intake is in a safe range. of. If you ingest large amounts, you may cause a health hazard.
3, monosodium glutamate:
Half of the ingredients are good for the body
â– Reasons for listing:
One half of MSG is L-Glutamine, which is beneficial to the body, but the other half is D-Glutamine, which is not available to the body, becomes a harmful free radical. The amount of MSG per person per day should not exceed 6 grams. Excessive intake will increase the level of glutamine and sodium in the blood and reduce the body's use of calcium and magnesium, which may lead to calcium deficiency and affect the strength of teeth and bones. . It can also cause short-term headaches, palpitations, nausea and other symptoms, as well as adverse effects on the human reproductive system.
â– Doctor analysis:
Director Gao Jian said that both the US FDA, the World Health Organization or the European Union have already passed the safety monitoring of MSG. The "tasty" taste produced by MSG and chicken essence is sodium glutamate. This ingredient is widely found in natural foods. Even if MSG is not used, food tastes good. So far, no research has proven that MSG is harmful to the human body. However, MSG does indeed contain a certain amount of sodium. After MSG is added to the dishes, salt can be appropriately reduced.
4, liver:
There are also a lot of nutrients, especially iron
â– Reasons for listing:
Each kilogram of pig liver contains more than 400 milligrams of cholesterol, intake of too much cholesterol will lead to atherosclerosis, while the liver is a detoxification organ, will accumulate a large number of metabolic poisons such as astragalus toxins, antibiotics, sleeping pills, so the liver should not eat.
â– Doctor analysis:
Director Gao Jian said that pig's liver has high cholesterol, and overweight and high cholesterol people try not to eat it. At the same time, liver is indeed a metabolic detoxification organ, but this does not mean that it cannot be eaten. As a natural food, there is also a large amount of nutrients in pig liver, especially iron. The key is to see who eats and how to eat it. There are a large number of anemic people in the urban population, especially women and children. How can they avoid toxins and obtain nutrients in the liver? Director Gao Jian said that a small number of times is a good method. For example, only six or seven pig livers need to be placed in the liver soup. The whole family will share it. Everyone will eat two or three pieces and cook two or three times a week. In addition, from a safety point of view, it is better to buy your own branded pig liver for home cooking.
5, fritters, pho, rice noodles, fans:
Eat once a week
â– Reasons for listing:
In the process of production must be added alum (aluminum potassium sulfate), such as eating these things easily lead to anemia, osteoporosis; at the same time, the body is too much aluminum, it is difficult to discharge from the kidneys, toxic to the brain and nerve cells, and even Causes Alzheimer's disease. In addition, the re-used oil of fried fritters is also harmful to health due to excessive oxidation.
â– Doctor analysis:
This is basically correct. The frying oil during frying is generally used repeatedly to cause excessive oxidation. However, in order to make them feel good, some vendors will add more alums during the production process. If they are eaten regularly, they will have a certain health impact. However, most people do not eat every day. If they do not exceed once a week, there will be no health risks.
6, pickles, dried radish:
Marinated for 24 hours or more
â– Reasons for listing:
Eating for a long time can cause sodium and mercury to stay in the body and increase the chance of heart disease.
In addition, it also contains nitrite amines or anti-malarial anti-corrosion agents, these are carcinogens, easy to induce cancer.
â– Doctor analysis:
Pickles and pickles are different in their characteristics due to their different manufacturing methods and additives. But almost all pickles and pickles contain nitrite, a carcinogen.
According to Director Gao Jian, the content of nitrite is the highest between 24 hours after pickling in food and within 20 days after pickling. Therefore, if you like pickles, try to eat pickles for two periods of time. : Within 24 hours or more after 20 days.
Director Gao Jian also mentioned that compared with pickles, pickles are relatively safe, and vegetables produce probiotics during the brewing process and are healthier to the body. In addition, try not to buy bulk kimchi or pickles, it is best to buy a packaged, branded, shelf life.
7, commercially available bottled fruit drinks:
Most are blended by sugar and flavors
â– Reasons for listing:
Too much sugar is added. It is even hotter than soda. It is recommended to eat fresh fruit or freshly squeezed juice.
â– Doctor analysis:
According to the director of high-keys, most of the sweet drinks are blended with sugar and flavors, and generally 8 to 15 cubes of sugar are added to each bottle. A 500-ml bottle of sweet drink, if you can taste sweet when drinking, it is basically to put 14-15 pieces of sugar. And most of these sweet drinks contain "heat", which means that in addition to sugar, there are almost no other nutrients, and the body needs to consume large amounts of vitamins B and C when metabolizing sugars.
At the same time, the director of high-keys does not recommend fresh juice, on the one hand, because the machine for extracting the juice is not cleaned in a timely manner after being squeezed, it is easy to breed bacteria, thus contaminating the next juice; on the other hand, many restaurants and beverage outlets Fresh additives are also added to the fresh juices sold. Even fruit flesh may be fake. Doctors suggest that it is best to eat raw fruit directly.
8, preserved eggs:
No more than once a week
â– Reasons for listing:
Preserved eggs contain a certain amount of lead, which can cause lead poisoning. The manifestations of lead poisoning are insomnia, anemia, hyperactivity, and mental decline.
â– Doctor analysis:
The preserved eggs produced by traditional methods do cause some lead to remain in the preserved eggs. Modern new technology uses zinc salts, which lead to a significant drop in lead content. Occasional consumption does not affect health. The director of high key reminds that it is important not to eat too many times, not more than once a week, and to purchase branded products through formal channels.
9, stinky tofu:
Doctor "Most Not Recommended Food"
â– Reasons for listing:
Stinky tofu is easily contaminated by micro-organisms during the fermentation process. It also contains a large amount of volatile base nitrogen and hydrogen sulfide, etc. It is a decomposing and destructive substance that is harmful to the human body.
â– Doctor analysis:
Stinky tofu is a food that is not recommended by high-key directors. First of all, the production process of stinky tofu is very easy to add "smelling", this stinky tofu smell that is quite "classic" is actually a chemical raw material; secondly, the black part of stinky tofu tends to collect heavy metals and toxic substances. Residues are prone to cancer. Once again, the oil used to make stinky tofu is also used repeatedly and is prone to over-oxidation. The safety of the stinky tofu on the roadside stalls is not guaranteed, even more!
10. Popcorn:
Eat more may be "popcorn lungs"
â– Reasons for listing:
The converter that makes popcorn contains lead. When heated at high pressure, the lead in the pot will melt in a certain amount, and part of the lead will become lead vapor and smoke, contaminating the raw material, especially at the moment of the final “explosionâ€. The amount of lead in popcorn is as high as 10 mg/500 g, which is harmful to the human body (especially to children)'s hematopoietic system, nerves and digestive system. If you eat too much, you may get popcorn lungs.
â– Doctor analysis:
The popcorn made by the traditional method has a certain lead intake risk as stated in the post, but the possibility of suffering from "popcorn lungs" is extremely small. There was a case in the United States. The reporter interviewed Dr. Cheng Cheng and there have been no relevant cases yet. report. More populace consumed by modern people is the popcorn sold at the entrance to the theater. In recent years, there has been a trend toward high sugar and high salt. Many people find that popcorn is now sweeter, slightly salty, and crisper when chewed. This is because more sugar, salt, butter, sweeteners and other ingredients have been added.
According to the director of high-keys, the popcorn in the theater is an absolute high-calorie, high-fat, high-additive food, and a large cup of calories is higher than the heat of two bowls of rice. But popcorn is also a food that can bring happiness. Doctors recommend that when you eat a certain amount of control, you can reduce the health risks. It is recommended that two people share a small cup each time.
Long Jiang said that the list like “Twenty Cancer Food Blacklists†is not scientific, because the burned parts of cigarettes and barbecued foods are all clear carcinogens. Cigarettes may not only cause lung cancer, but also Several cancers are related. Even if you only eat meat every day, it will cause cancer-related factors. The production of tumors is not a day out, but a chronic disease. Every day, every time you change, it will affect whether the tumor is produced.
Like diabetes and cardiovascular diseases, cancer prevention and cancer prevention should not begin with cancer, nor do they start from the age of 50. Instead, they should “grab the babyâ€, and the sooner prevention is, even if the genetic risk is high, the health of the day after tomorrow. Life can also reduce the risk of illness. Therefore, from the daily diet, sleep, exercise, psychological adjustment, adhere to a healthy physical examination, early diagnosis and treatment of disease, you can get rid of cancer and stay healthy.
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