This article is from the WeChat public account: Phoenix Network (ifeng-news) author: Fei know, head – source: vision China.

Phoenix Network Note: Research from Oxford University found that diet is the most important carcinogenic risk factor, and 30% -35% of cancer deaths are related to diet. Ingredients, cooking and preservation methods can all cause cancer on the tip of the tongue.

China is both a country of great food and a country of cancer.

In China, about 10,000 people are diagnosed with cancer every day, which is equivalent to 7 people with cancer every minute. Maybe it’s with you and me. Maybe there are many carcinogens hidden in the food, you just finished eating, or you are about to enter. Do n’t worry, let ’s take a look. What are these carcinogenic foods and how can we prevent them?

In the night of the thirtieth year, the family gathered together. A large annual meal can be eaten for several days. It seems that all the food in the year and the taste of hometown are concentrated in the meals of the Spring Festival.

But you are completely unaware of food and excitement. Many carcinogens may have been eaten by you.

Last year of the Spring Festival, Weibo launched a campaign to “show off your New Year’s Eve”, and many netizens responded.

Everything is said to come from the mouth, so is cancer.

Oxford University research found that diet is the most important carcinogenic risk factor, and 30% -35% of cancer deaths are related to diet. Ingredients, cooking and preservation methods can all cause cancer on the tip of the tongue.

China, as a gourmet country, is also a cancer country.

In China, about 10,000 people are diagnosed with cancer every day, which is equivalent to 7 people with cancer every minute. Maybe they are right there.

In 2013, China estimated that there were 3.682 million new cases of malignant tumors and 2.229 million deaths. Among them, the incidence and mortality of malignant tumors in men are significantly higher than those in women, and lung cancer, gastric cancer, liver cancer are more common in men, and breast cancer, lung cancer, and colorectal cancer are more common in women.

Salted Fish: A Shortcut to Cancer for Southerners

Guangdong, Guangxi, and Fujian are the worst.

If you want to find out which foods cause cancer, you need to refer to this list of the world ’s most authoritative carcinogens. It is published by the International Cancer Research Agency and is a subsidiary of the World Health Organization.

All carcinogens are divided into 5 levels, the higher the level, the carcinogenic effect on humansThe clearer:

Class 1 carcinogens: substances that are clearly carcinogenic to humans;

Class 2A carcinogens: substances that are likely to cause cancer in humans, that is, carcinogenic effects in animal experiments are clear, but it is not clear to humans;

Class 2B carcinogens: substances that may cause cancer in humans, that is, insufficient evidence for carcinogenicity in animal and human experiments;

Class 3 carcinogens: substances that do not know whether they cause cancer in humans;

Class 4 carcinogens: substances that are unlikely to cause cancer


On October 30, 2017, the list of carcinogens released by the State Food and Drug Administration’s official website was compiled based on information published by the International Cancer Research Agency.

Among them, the most clear carcinogenic effect is 120 types of Class 1 carcinogens, such as formaldehyde, arsenic, radiation, etc. that we are familiar with.

It is surprising that Chinese salted fish is one of the only three foods named.

In fact, this is nothing new, because scientists have noticed that salted fish may cause cancer as early as 50 years ago.

At that time, nasopharyngeal carcinoma was still a very rare cancer. Of the 100,000 people in the world, not one patient could be identified.

However, in the southern part of China, the incidence of this rare cancer is 25-40 times that of the international level, and there are more in the south and less in the north. Guangdong, Guangxi, and Fujian are the most serious, and they are even called “Guangdong cancer”.

People in these places have one thing in common-they especially like salted fish.

In the past, southerners like Guangdong mostly ate salted fish. As a kind of food for the poor, sometimes salted fish is the only side dish. The diet of salted fish is very common. Many people start eating it right after weaning. Although the intake of each meal is small, but it is almost every day, eat it every day, so that the carcinogenic nitrosamines are eaten together into the body, which leads to such a high incidence of nasopharyngeal cancer.

Later, scientists discovered that more than 90% of nasopharyngeal cancer patients in Hong Kong were eating salted fish, especially from a young age. Subsequent studies also support the conclusion that salted fish is carcinogenic.

This is mainly because we can produce nitrosamines when salting and eating salted fish, which is a class of strong carcinogens that can cause genetic mutations and is also an internationally recognized class 1 carcinogen.

Animal experiments show that nitrosamines have carcinogenic effects on liver, lung, stomach, kidney, bladder, esophagus, small intestine, brain and nervous system, and some have high toxicity.

For example, in the case of poisoning by a roommate in Fudan University, it was the invisible killer.

In April 2013, Huang Yang, a graduate student of Shanghai Medical College of Fudan University, was poisoned by his roommate Lin Senhao. The poison put into the water dispenser belongs to nitrosamines. In medicine, it is mainly used to artificially cause liver damage in laboratory animals and induce tumors. For humans, it not only has strong carcinogenicity, but also may cause acute liver necrosis due to poisoning, and eventually die from multiple organ failure.

Bacon: A Carcinogenic Delicacy in a Northerner’s Bowl

Seeing this,The northerners who do n’t eat salted fish often breathe a sigh of relief. Do n’t worry about it first. You must have eaten this kind of carcinogenic food.

Yes, it’s pickled vegetables.

Which mustard, sauerkraut, pickled cucumber, spicy cabbage, shredded mustard, red in the snow, there is always one you have eaten.

Many people think that there are many nitrites in pickles, which can cause cancer, but it is not accurate because the carcinogenic effect is nitrosamines.

Nitrite is one of the raw materials of carcinogenic nitrosamines. Nitrate and secondary amines play a similar role.

They are very common in vegetables, processed meat products and drinking water, especially for “overnight dishes” and vegetables that have not been cured for a period of time. Nitrite will increase.

The carcinogenicity of these raw materials is not clear. Some are even commonly used food additives, but they can synthesize carcinogen nitrosamines in the human body under the influence of gastric juice and oral bacteria, thereby greatly increasing the risk of cancer.

So far, many people are convinced that “the nitrite in overnight vegetables causes cancer”, and a lot of reports appear every year. In fact, all green leafy vegetables contain nitrate. After being cooked for a long time, nitrate will become nitrite under the action of bacteria and some enzymes, and its carcinogenicity is not clear. But it may form nitrosamines in the human body, which is the real carcinogen.

The survey found that the contents of carcinogens such as nitrite are high in food and drinking water in areas with high incidence of esophageal cancer in China.

These substances have also been detected in fish sauce and sauerkraut in Chaoshan area, which has a strong risk of esophageal cancer. The prevalence of local esophageal cancer is as high as 1/1000, and the mortality rate in some places is as high as 114.9 / 100,000, which remains high for a long time.

However, pickles and pickles produced by regular manufacturers generally do not need to worry. They are safe in production process and long in pickling time.

It is the “three-nothing” pickles that are home-made and sold by the roadside. The ghost knows how long they have been pickled.

If you have marinated it for less than 2 weeks and you eat it with steamed buns, congratulations, your risk of cancer has increased a lot, because this is when the nitrite content in pickles reaches its peak .

The “pickled vegetables” that northerners like to eat belong to this category.

One out of 5 bowel cancer deaths

During the Chinese New Year, even if you do n’t eat salted fish pickles, who does n’t smoke a few pieces of bacon and buy a few sausages to go home? But remember, they are also carcinogenic.

Yes, in addition to Chinese-style salted fish, another food that is identified as a Class 1 carcinogen is processed meat products, which is what we often call “cooked food.”

Hot dogs, bacon, ham, bacon, sausages, sauces, beef jerky, canned meat, seasoning gravy, including the full-fledged bacon and sausage.

The International Agency for Research on Cancer reports that eating 50g of processed meat a day increases the risk of bowel cancer by 18%. The National Cancer Institute-funded project also claims that eating 10g of processed meat a day increases the risk of prostate cancer by 42%.

That is to say, eating a few slices of bacon, a few sausages, and a few pieces of beef jerky will greatly increase the risk of cancer. I am afraid that most people will be shot.

And in colon cancer patients, 1 in 5 can be attributed to eating processed meat or red meat. In 2012, 20% of 700,000 bowel cancer deaths worldwide were in China.

The full-bodied bacon is also a processed meat product, which was listed by the International Cancer Research Agency in 2015 as a class 1 carcinogen with clear carcinogenic effects on the human body.

In addition, some specific meat cooking methods also bring additional risk of carcinogenesis.

For example, in the cooking process of salting, grilling, and smoking, meat may form carcinogens such as nitrosamines and benzopyrene.

Perhaps the most typical is benzopyrene in barbecue, which is a type 1 carcinogen that can accumulate in the human body. It generally exists in the smoke, fumes, automobile exhaust and industrial sewage produced by the combustion of coal. It sounds like nothing to do with food.

However, when grilling and smoking, charcoal combustion itself will generate benzopyrene, which will rise with the smoke and adhere to the surface of food.

Meanwhile, the incomplete burning of sugar and fat in meat at high temperatures also produces benzopyrene.

This carcinogen is also found in vegetable oil repeatedly fried foods, stir-fried foods, and high-temperature oil fume.

In other words, we smoke carcinogens into the body when we smoke them.

There are two main types of carcinogens in barbecues, polycyclic aromatic hydrocarbons on smoke and meat surfaces, and heterocyclic amines in the carbonized layer. If the meat is cured, it may also contain another carcinogen, nitrosamines.

Betel nut, moldy / hot food are all good helpers for cancer

Besides that, there are still notReducing daily foods can cause cancer on the tip of the tongue.

For example, chewing a few betel nuts without any problems will damage the oral mucosa, and arecoline is related to oral cancer.

Aflatoxins contained in molds (especially peanuts and corn) and puer tea which are moldy due to improper storage methods can induce liver cancer, kidney cancer and breast cancer.

Parents always let you eat hot foods while hot, which will repeatedly stimulate and damage the esophageal mucosa, which can easily cause oral cancer, pharyngeal cancer, and esophageal cancer.

A little bit of attention, these foods either create favorable conditions for cancer, or the carcinogens in them are eaten by you unconsciously, and your heart is beautiful.

Learning these tricks is not difficult to stay away from cancer

Not only in New Year’s Eve and dinners, these common carcinogens can’t be avoided. Even in normal times, who has ordered takeaways and home refrigerators without ordering meaty, leftovers and pickles.

This is also carcinogenic, and it is also carcinogenic. What should I eat?

Seeing this, maybe you are already anxious, some are ready to transfer to your parents to persuade them to eat less of these foods, and some have already turned the refrigerator and prepared to lose ingredients. Don’t worry, it may be too late to read our cancer prevention tips.

First, carcinogens do not necessarily cause cancer 100%, the key is the amount.

For example, the Global Burden of Disease Project once estimated that 34,000 people worldwide may die from cancer due to excessive consumption of processed meat products. Although the risk of carcinogenicity of meat is still small, it will increase as the amount of meat used increases.

It seems that compared to people who do n’t leave their hands with barbecued pickles and wine every day, it does n’t matter much to go out and drink beer occasionally.

However, if you pay attention to reducing the exposure of carcinogens,The amount of money, away from risk factors, can naturally reduce the incidence of cancer.

Conversely, if you only eat foods with a low risk of carcinogenesis, it will not guarantee that you will never get cancer in your life. Moreover, long-term partial eclipse is not conducive to nutritional balance.

The Annual Report of China Cancer Registry 2017 shows that at a life expectancy of 85 years, the risk of cancer in a person’s life is as high as 36%, and the incidence rate rises rapidly after the age of 40, and peaks at the age of 80.

Because more than 90% of cancers are related to the environment and lifestyle, if you want to reduce the risk of cancer, develop healthy lifestyles and reduce exposure to strong carcinogens, regular physical examinations and timely medical treatment are necessary.

A study by the MD Anderson Cancer Center in the United States shows that only 5% -10% of cancer cases are related to genetic defects, and the remaining 90% -95% of cancers originate from adverse environments and lifestyles, including diet, smoking, infection, obesity, Alcohol, etc., of which diet and cancer are most closely related.

In an event, I was fortunate to meet Sun Yan, a member of the Chinese Academy of Engineering. Mr. Lao is an expert in cancer in China. He said that he has seen cancer all his life. Prevention is more important than treatment. He has already concluded a set of methods for preventing cancer. We are here to share with you.

1. Stay away from carcinogenic factors

2, check up on time

3. Early treatment of chronic diseases to prevent cancerAnd precancerous lesions

4. Maintain physical and mental health


In addition, the 10 cancer prevention recommendations provided by the American Cancer Institute have also been adopted by many people.

It can be seen that, rather than believing in so-called anti-cancer health products, it is better to improve life and eating habits early.

Otherwise, if you consider yourself an “occasional” indulgence, staying up late, overeating, drinking, smoking, sedentary, and under-training, after years of accumulation and amplification, it may become the cause of cancer in the future. I regret it then, but it ’s too late