In the spring, everyone began to want to eat a little seasonal vegetables, especially after hearing that wild vegetables have higher nutritional value than vegetables in greenhouses. Vegetables with mud roots, and even wild vegetables, have become hot commodities specializing in health.
Recently, Aunt Wang, who lives in the suburbs, sent a lot of fresh vegetables to her sisters who live in the city center. Some are vegetables grown by nearby farmers, and some are dug up wild vegetables. Last time, I sent some bitter lettuce, and the family ate a cold bitter lettuce beautifully.
On another weekend, Aunt Wang made a video call to her sister and asked her if she would eat bracken. Recently, Aunt Wang's family has brought a lot of bracken, and if she needs it, she will send a little to the old sister's family.
As soon as she heard Aunt Wang say this, the sisters of the mother-in-law waved their hands and said no. "Don't you know yet?" Bracken is a carcinogen and is officially determined! We can't buy bracken here because no one dares to eat it. Don't eat it either! ”
What the? Carcinogenic is bracken? Or is it an officially recognized carcinogen?
At this moment, Aunt Wang's heart was trembling with fear. I can eat a lot of bracken at home. After hanging up the video phone, she quickly searched on the Internet, and sure enough, many articles popped up.
Looking around, keywords such as WHO, bracken, and class 2B carcinogens jump straight out. Aunt Wang couldn't read the article anymore, so she quickly said to her family: Our family has eaten bracken for so many years, will we get cancer?
Bracken 100% carcinogenic?
First of all, is this a message released by the official organization?
In fact, this is a study made by IARC, the International Agency for Research on Cancer affiliated with the World Health Organization. If you check the official website, you can find a list of a series of carcinogens.
Bracken contains an ingredient called ptaquiloside, Chinese the translated name is protofern. It is it, rated as a Class 2 B carcinogen.
In fact, not only proferns, but also phenyloxalic acid, fern lactam and flavonol compounds have been identified as several substances that play a carcinogenic role. Only one of the most critical and violent is protofern.
It can carry out hydrolysis reactions, and the carcinogenic effect of producing dialenone compounds is relatively strong. It can alter the body's DNA, producing a series of abnormal cellular responses that lead to cell mutations.
Moreover, it is a genotoxic carcinogen. So there is no such thing as a safe dose. Theoretically, how much you eat has a potential carcinogenic effect.
So, does a secondary B carcinogen mean 100% carcinogenic?
In fact, this type of carcinogen is an ingredient that may cause carcinogenic effects on humans and animals. From the clinical evidence, this theory lacks relevant and powerful data.
In addition, protoferns account for only 0.1-0.6% of the serving. As long as a person does not eat more than 1 kilogram of bracken a day for 20 years, it is not so easy to get cancer.
Moreover, cancer is not caused by a single element. Each person is in a different environment, genetic factors are different, the body background is different, resulting in different results.
Can bracken be eaten? First of all, eat less cold bracken, because the risk of processing and eating will be reduced. And pay attention to eating in moderation.
These dishes contain natural photosensitizers
The problem of bracken is solved, and let's talk about a few vegetables that contain natural photosensitizers. People with allergies need to take a detour on them!
01 Celery
02 Spinach
03 Rapeseed
04 Lettuce
Why are they brought out separately? That's because one ingredient --- furancoumarin.
As a natural photosensitizer, furan coumarin is not a poison, and eating it is harmless to the human body. However, exposure to ultraviolet light is different.
Whether it is an ordinary person or a person with an allergic constitution, after ingesting a natural photosensitizer, and then exposed to ultraviolet rays, it is more likely to cause skin symptoms and cause sensitivity.
This type of vegetable is also called light sensitized vegetables. It is recommended that people with allergies can be more careful when eating.
Dr.X said
Vegetables are good, but not all vegetables are "good medicine". Especially wild vegetables that you don't know, you can't pick and eat randomly. Many cultivated vegetables should be repeatedly cleaned when eating, and blanched in boiling water several times to remove harmful internal components.