Four kinds of vegetables have been included in the ＂carcinogenic list＂. Will eating too much cause cancer？

"Don’t be a broken ear root in the future. Pull out everything in the yard. Experts say it contains carcinogens, and if you eat it, you will get cancer." Uncle Li kept talking to his wife about the harm of broken ears.

"I don’t believe it when I break my ears to clear away heat and detoxify, and it tastes good. Don’t watch those people talk nonsense every day."

"What nonsense? Look at this article. It says that the root of the ear contains aristolochic acid, which is a carcinogen and can’t be eaten. It is also signed by experts!"

"I don’t believe it! I’ve been eating it for decades. Is there a problem? It’s still alive and kicking. "

"Hum, anyway, I won’t eat the roots of broken ears in the future, and you shouldn’t be my share, you are stubborn!" Uncle Li didn’t listen to his wife, so he left without looking back.

Cynanchum auriculatum, also known as Houttuynia cordata Thunb, is not only a vegetable, but also a Chinese herbal medicine. Because of its unique taste and the effect of clearing away heat and toxic materials, it is deeply loved by some people. However, in recent years, there are more and more sayings about "the root of broken ears causes cancer", saying that it contains aristolochic acid carcinogen, which will cause cancer if eaten. Is this statement true or a rumor?

Houttuynia cordata Thunb is a harmful grass,

Containing aristolochic acid, is it nephrotoxic and carcinogenic?

Houttuynia cordata Thunb is controversial because it contains aristolochic lactam alkaloids. Then there are many types of alkaloids, including an aristolochic acid component. Because of its strong nephrotoxicity and hepatotoxicity, in 2008, aristolochic acid was officially listed as a class 1 carcinogen by the International Agency for Research on Cancer. Moreover, in 2015, China’s National Pharmacopoeia also deleted three Chinese herbal medicines containing aristolochic acid, namely Aristolochia manshuriensis, Fangji and Aristolochia. Does that mean houttuynia cordata is carcinogenic and can’t be eaten?

Of course not. Aristolochic lactams are divided into many different types. At present, the substances known to be toxic and carcinogenic are aristolochic acid and aristolochic lactam I.. The components in Houttuynia cordata Thunb are aristolochic lactam BII, AII and FII, which are completely different from aristolochic acid I. At present, there is no evidence that these substances in Houttuynia cordata Thunb are toxic or carcinogenic. People who love houttuynia cordata can eat it with confidence.

I ate too many vegetables.

Can cause cancer? Don’t be fooled again

1. Eating fresh fungus is easy to induce skin cancer?

The reason for this statement is that there is a light-sensitive substance porphyrin in fresh auricularia auricula, which may cause skin itching, edema and other symptoms after entering the body by sunlight, and even induce skin cancer.

In fact, there are light-sensitive substances in many foods, including celery, and it is not unusual for vegetables to contain this ingredient. The current research shows that the occurrence of porphyria is mainly related to the abnormal metabolism of porphyrin in the body caused by genetic factors, and has little to do with the porphyrin ingested in the diet, so it is safe to eat it every day.

2, bergamot contains carcinogens, can not eat?

It is rumored that the fried bergamot will produce acrylamide, which is considered as a carcinogen, and long-term intake will increase the risk of cancer.

Undeniably, fingered citron will undergo Maillard reaction after being fried at high temperature, and then acrylamide will be generated. However, this reaction is not unique to bergamot, but also widely exists in fried food, baked food and cooking. Therefore, bergamot itself does not contain acrylamide, which is caused by the cooking method. It is recommended to pay attention when cooking. There is also acrylamide, a class 2A carcinogen, which may cause cancer to human beings. At present, there is no clear evidence that people will cause cancer if they eat it. Again, the occurrence of cancer is related to many factors and cannot be simply attributed to a certain food.

3. Does the herbicide contained in rootless bean sprouts cause cancer and teratogenesis?

2,4-Dichlorophenoxyacetic acid plant growth regulator is used in the production of rootless bean sprouts, which is widely used in agriculture. When used in low concentration, it will promote the growth of bean sprouts and inhibit the formation of roots and buds. When used in high concentration, it can really achieve the effect of herbicide, but this concentration will also make bean sprouts unable to grow.

4, raw tomatoes, can lead to gastric cancer or intestinal cancer?

Raw tomatoes contain a lot of alkaloids (solanine), which may cause dizziness, vomiting, diarrhea and other food poisoning symptoms. It is not exaggerated to lead to gastric cancer or intestinal cancer. The occurrence of cancer is related to many factors and will not be directly caused by the intake of a certain food. However, it is still not recommended that you eat raw tomatoes. However, as the maturity of tomatoes increases, the components of Solanum nigrum will be greatly reduced, and this problem will not occur when cooked tomatoes are eaten.

Five kinds of food are the culprit of cancer.

According to the danger to human beings, the International Center for Research on Cancer divides the carcinogenic factors into 1 category, 2 category, 2 category, 3 category and 4 category. Among them, class 1 carcinogen means that there is sufficient evidence to prove that it has carcinogenic risk to human body. Through combing, it is found that some carcinogenic factors are hidden in our food, mainly the following five kinds.

Salted fish, pickles, etc.

A large amount of nitrite will be produced in the process of food curing, and nitrite will combine with protein to produce nitrosamines after entering the body, which is a kind of carcinogen and will increase the risk of esophageal cancer, liver cancer, colon cancer and other cancers.

Mildew food

Mildew food is likely to contain aflatoxin, especially foods with high starch content such as peanuts, corn and nuts, which are more likely to be produced after mildew. Aflatoxin is a highly toxic and carcinogenic substance. Intake of 1mg can cause cancer in the body.

barbecue

Carcinogens such as benzopyrene and polycyclic aromatic hydrocarbons may be found in the smoke generated by charcoal burning, the lampblack dripping from meat oil and burnt food when meat is roasted at high temperature. Eating a lot of barbecue for a long time will increase the risk of cancer in the body.

alcohol

Alcohol is a clear carcinogen, and data show that more than 3 million deaths worldwide are related to drinking every year. Smoking and eating a lot of high-fat food while drinking will double the harm to the body. The Lancet magazine directly pointed out that there is no so-called safe amount of drinking, and the best amount of drinking should be 0.

areca

The research published in The Lancet-Oncology pointed out that arecoline in areca catechu has carcinogenic effect, and it was identified as a class 2B carcinogen. Moreover, the fiber in betel nut is very rough, which will continuously damage the oral mucosa when chewing. In the process of repeated injury and repair, the risk of oral cancer will increase significantly.

The occurrence of cancer is related to many factors, and it is unscientific not to blame the culprit on a certain food. Maintaining good living habits and regular physical examination every day is the right way to prevent cancer.

References:

[1] Unbelievable! Are these vegetables "carcinogenic"? Many people don’t know … ".Popular Science China. 2020-07-04.

[2] "Rootless bean sprouts are highly toxic and can cause cancer? No harm to health, no need to worry. The whole people are more serious-Tencent News. 2017-04-14

[3] "Attention! These primary carcinogens are very common in life, but many people are still in the dark … ".Popular Science China.2020-08-02.

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