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Experts say that the evidence that protofern glycosides cause cancer is not direct, but if it is overtaken for a long time, the incidence of stomach cancer and esophageal cancer may increase greatly for sensitive groups! ”
The fern (bracken is its shoot) is one of the most widely distributed plants in the world, and in many places its shoots are treated as vegetables, and starch is also extracted from the roots. Bracken, also known as longevity vegetables, is a wild plant known as the "king of mountain vegetables". Each gram of bracken contains mg of carotene, 35mg of vitamin C and a variety of minerals.
Traditional Chinese medicine believes that bracken is sweet in taste, cold in nature, has the effect of clearing heat, relieving dampness and reducing swelling, calming the nerves, invigorating blood and relieving pain, and can be used for fever, dysentery, jaundice, etc.
The "protofernin" in bracken may be the culprit of carcinogenesis, and experiments have found that protofernin can also react with amino acids and destroy genetic material DNA. Protofern glycosides are found in all parts of the fern, and the amount is higher in the young part of the bracken, which is eaten by humans. However, fresh bracken is bitter and astringent, and most people generally treat fresh bracken with plant ash, alkaline water or blanching before eating.
However, this treatment only reduces the content of proterteosides, not completely eliminates them.
Experts remind: wild meat, wild vegetables, which are relatively "far away" from us, have not become the main dishes on the table after thousands of years of choice, and try to eat as little as possible; It is best to focus on food that is relatively "close" to us in our daily diet, and we should not try all kinds of game for the purpose of trying new ones.
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Is bracken poisonous? Is it carcinogenic?
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The substances associated with cancer contained in bracken are benzoxalic acid, fern lactam, flavonols, quercetin, and some substances similar to quercetin. These carcinogens are most abundant in the rhizomes of bracken, followed by the leaves.
According to the carcinogenic experiments of bracken in many countries around the world, bracken can induce bowel cancer, breast cancer, bladder cancer, leukemia and so on in rats.
Scientists have also tested the carcinogenicity of cooked bracken to show that even processed bracken can induce cancer.
It is recommended not to eat bracken as well.
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In the Beijing TV Health Hall, I did hear such a statement from experts.
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Bracken is a wild vegetable that many people love to eat. But since the report on TV that "eating bracken often causes cancer" appeared, many people dare not eat bracken anymore, so is it true that bracken causes cancer?
1. Is it true that bracken causes cancer?
Studies have found that bracken contains some benzoxalic acid, quercetin, bracken lactamide, protofernin, flavonol compounds, etc., these substances may cause cancer, especially protofernin, so if you usually eat too much bracken, the body ingests too much protofernin, it will increase the risk of gastric cancer and esophageal cancer. In addition, many people usually eat bracken, pickled more, generally pickled food will contain a large amount of nitrite, in the body will synthesize nitrite amine, this substance is carcinogenic, so eat a lot of pickled bracken, may cause cancer.
2. Is bracken really not to be eaten?
1.Is it true that bracken can't be eaten.
Bracken has a certain risk of causing cancer, but if you usually like to eat bracken very much, it is not unavoidable to eat less occasionally and try it out.
2.How to eat bracken.
When cooking bracken, choosing the right method can minimize the carcinogens in bracken. For example, the protofern in bracken is easily soluble in water, so when cooking bracken, soak the bracken in water first, and change the water several times, which can effectively reduce the protofern in bracken. Protofernin volatilizes when exposed to heat, so choosing a high-temperature cooking method when stir-frying bracken can reduce the protofernin in bracken.
Protofernin will also be destroyed when it encounters acids and alkalis, so adding some vinegar during the cooking process can reduce the content of protofernin in bracken, thereby greatly reducing the risk of carcinogen.
3. The benefits of mountain bracken.
1.Clears away heat and detoxifies.
Bracken is rich in brackenin, which has a certain inhibitory effect on bacteria, so when symptoms such as fever and eczema appear, eating some bracken appropriately is helpful for the alleviation of the condition.
2.Hemostasis and blood pressure.
Because bracken is rich in vitamin B2, vitamin C, saponin and other substances, these substances have a good effect on lowering blood pressure, blood lipids and cholesterol.
3.Detoxification diuretic.
Because bracken can nourish yin and kidneys, relieve cough and diuretic, so when there are diseases such as urine blockage, intestinal wind and heat poison, you can also eat some bracken appropriately.
Although bracken has a risk of causing cancer, as long as it is not eaten frequently and reasonable cooking methods are taken, it not only does not cause cancer, but can even cure diseases.
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Is bracken carcinogenic, it's not true, it's toxic, and it's edible if it's handled well. Blanch.
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Bracken is a wild vegetable that has not been artificially cultivated. Therefore, its nutritional value is very rich, so it is loved by many people. But some people have raised the question, does bracken cause cancer? Let's take a look at the two.
Is bracken really carcinogenic
Bracken is carcinogenic.
There are often rumors that after eating bracken, the stomach will be uncomfortable, which will lead to stomach cancer, esophageal cancer, bowel cancer and other diseases. Subsequently, it was proved through relevant experiments that eating bracken can indeed pose a threat to health, thereby causing cancer.
This is because bracken contains fern irulon, a strong carcinogen, which is very lethal to health. Even after a certain amount of processing, the carcinogens in bracken are difficult to destroy, and can also induce cancer. Even after cooking, the molecular structure of carcinogens is difficult to destroy.
Bracken also has other names, respectively called fist vegetables, dragon head vegetables, etc., mainly grown in mountainous areas, like to grow towards the sun, most of our country has its figure. There are many ways to eat bracken, not only stir-fried, but also cold. Make a filling.
However, if you can't eat a large amount of it, it will easily cause gastrointestinal discomfort, and eating it regularly will also induce stomach cancer, so you must eat it in moderation.
How to eat bracken correctly
Because bracken contains carcinogenic substances, so when eating, we must control the amount, when we eat, the psychological pressure should not be too heavy, eat once in a while, and will not have much impact on the health of the body, we can bracken bracken, dry, and then cook, then carcinogens will be more or less lost, so as to reduce the harm to the human body.
Why do vegetables cause cancer
Many people will wonder why eating vegetables can cause cancer, and that is because vegetables contain two substances, asparagine and reducing sugar, which will undergo a chemical reaction after high-temperature cooking, resulting in the production of a new substance, that is, acrylamide. This substance can be carcinogenic, especially in legumes, it is most likely to appear, and the amount of acrylamide released will be different according to the content of aspartyl.
In addition, for those foods that contain a lot of carbohydrates and amino acids, after high-temperature cooking, it is easy to produce acrylamide, which endangers our health.
For those sour vegetables, then there are relatively few carcinogens, on the contrary, sweeter vegetables contain more sugar, so the lethality to the body is also greater.
Diet is a kind of knowledge, if you want to get good health, then you can't do without continuous supplemental knowledge, in order to avoid misunderstandings and protect your health.
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