Hollow cabbage is harmful to the human body

Hollow cabbage is harmful to the human body, hollow cabbage is a very cheap and tasty vegetables, so hollow cabbage is often on the table, it is worth mentioning that there are a lot of people who like to eat raw cabbage, experts say that this way of eating is more dangerous, there may be a lot of harm to the body, the following is about the hollow cabbage is harmful to the human body.

hollow cabbage is harmful to the human body 1

First, what are the disadvantages of eating raw cabbage

Pesticide poisoning

Hollow cabbage in the growth process, may be sprayed with pesticides, if it is the hollow cabbage cleaned up a little bit and eaten directly raw, pesticides are not easy to wash off, long-term so The pesticides are not easily washed away, and long-term consumption of these products can cause discomfort and serious pesticide poisoning.

Infected with parasites

During the growth process of the hollow vegetable, there will be parasites or bacteria, usually just wash is very difficult to wash off the parasites or bacteria, if eaten raw, the chances of infected with parasites is very high.

Gastrointestinal discomfort

Hollow vegetables are cold vegetables, consumption of which would have been easy to lead to the spleen and stomach cold, eaten raw is more on the gastrointestinal stimulation, leading to gastrointestinal discomfort, dyspepsia.

Affecting calcium absorption

The oxalic acid content in the hollow vegetable is relatively high, if eaten raw, oxalic acid is easy to combine with calcium in the body to form insoluble calcium oxalate, affecting the human body on the absorption of calcium substances.

Second, the hollow cabbage can be eaten raw

Hollow cabbage can be eaten raw, but it is not recommended to eat raw.

Hollow cabbage taste sweet, cold, non-toxic, whether cooked or eaten raw are available, but the hollow cabbage fiber content, water is not so sufficient, the taste will not be crisp and juicy, the taste will not be too good, and eaten raw will be a certain risk, so generally speaking, the hollow cabbage is recommended to eat well.

Three, eat raw eat cabbage nutrients more rich

Although eating raw eat cabbage can retain a more complete nutrients, relatively speaking, nutrition may be more rich, but the body absorption and utilization effect may be worse than cooked to eat.

Fourth, eat the notes of the cabbage

Although the cabbage can be eaten raw, but it is not safe to eat before it is best to be able to blanch with boiled water to reduce oxalic acid content and to avoid parasitic infections; in addition to whether it is eaten or eaten raw or cooked, spleen and stomach, diarrhea, gastrointestinal function of the poor people to eat less cabbage.

It is really the "king of poisons"?

Hollow Cabbage, also known as Tong Cai, Tong Xin Cai, water spinach, etc., is now mainly grown in the land or greenhouse. Because of the delicious flavor and nutrient-rich, and there is a "south of the water spinach, celery, vegetables and vegetables of the treasure" of the beauty of the name.

However, in recent years, the "poisonous comments" on cabbage and a lot of people think that "cabbage is most likely to adsorb heavy metals and pesticide residues," which in fact is a lack of basis for the statement.

We have to recognize that any vegetable can not be separated from the environment, so the hollow cabbage by heavy metals and pesticide pollution is inevitable.

But this does not mean that the ability to adsorb heavy metals is the strongest, so the "king of the poison" argument can not be established.

In addition, whether or not the heavy metal content of crops exceeds the standard depends on three factors: pesticide use, water quality, soil.

A study has tested eight common vegetables such as hollow cabbages for heavy metals, and the results show that the risk of lead and cadmium in hollow cabbages is high, but exceeding the standard is very rare.

As long as the standardization of planting, do not abuse pesticides, generally not a problem.

Second, the hollow cabbage nutrition is actually quite a lot

Hollow cabbage is not only crisp and flavorful, but also the following three roles:

First of all, replenish potassium. Potassium deficiency in the human body is prone to weakness in the limbs, poor mental health, decreased appetite and other symptoms, at this time should be timely potassium supplementation.

The potassium nutrient density of hollow vegetables is 12.15, which can be said to be rich in potassium.

Secondly, relieve constipation. There is a lot of fiber in the cabbage, which is conducive to promoting intestinal peristalsis, accelerating defecation and promoting the discharge of toxins in the body, especially suitable for poor digestion and long-term constipation of the population to eat.

Lastly, it's a good idea to get rid of the heat. As a cold vegetable, it is especially suitable for people with heat illnesses to eat. Plus, the lignin in the cabbage is rich in lignin, which can enhance the phagocytosis ability of macrophages, and can also be anti-inflammatory and sterilization.

Modern medicine has also found that the juice of cabbage has an inhibitory effect on bacteria such as Staphylococcus aureus and streptococcus.

Third, not everyone can eat

Eating cabbage has so many benefits, but unfortunately not everyone can eat, which is also attributed to the characteristics of the cabbage itself.

According to Chinese medicine, hollow cabbage is cold and slippery, and it is a dietary contraindication for people with weak spleens and stomachs and frequent diarrhea.

These people eat the hollow cabbage, may lead to the body of cold aggravation, often aggravate the disease.

In addition, low blood pressure and hypoglycemia patients eat more hollow cabbage is also not conducive to health.

Fourth, how to eat the cabbage?

Before saying eat, Xiaojiu first rumor 2 say.

First of all, some people say, eat the cabbage will be cramped, so it is also called "cramp vegetables". But this is supposed to be for people who don't have enough calcium.

The high oxalic acid content of cabbage, combined with the body of calcium, the formation of calcium oxalate, affecting the absorption of calcium, so the calcium shortage of people eating cabbage may be cramps, other people generally do not have this symptom.

In addition, "eating cabbage will trigger gout" is not accurate.

Gout is often caused by elevated purines in the body, and cabbage as a low-purine food, and gout has nothing to do with.

Eating cabbage can pay attention to the following points:

1, for the high content of oxalic acid in the cabbage this problem, it is recommended that we try to blanch before eating, to reduce the oxalic acid content of the cabbage, to avoid the problem of cramps after eating.

2, in areas with high heavy metal pollution, it is recommended to eat the stems of cabbages, while areas with low heavy metal pollution can selectively eat stems or leaves.

3, cabbages should not be eaten with shrimp, milk and other high-calcium foods, may reduce the absorption of high-calcium foods, and trigger vomiting, dizziness and other uncomfortable symptoms.

Many people are afraid to eat because of the hollow cabbage is the "king of poison", in fact, this statement is simply "untenable".

The nutritional value of the hollow cabbage is very rich, suitable for the crowd can rest assured that they can eat, but in the time to eat to remember the above precautions Oh.

Hollow cabbage is poisonous

Any kind of vegetables can not be separated from the environment, the emergence of heavy metals and pesticide residues is sometimes unavoidable. In addition to hollow cabbage, any vegetable will adsorb toxic substances, hollow cabbage adsorption of heavy metals is a little higher, but the adsorption content is not high, so you can want to eat, do not have to worry.

On the contrary, cabbage is a vegetable with powerful effects. Cabbage is alkaline food, and contains potassium, chlorine and other elements to regulate the balance of water, after eating can reduce intestinal acidity, to prevent intestinal flora imbalance, beneficial to cancer prevention, and because of the richness of potassium, cabbage has the effect of lowering blood pressure.

Hollow cabbage contains potassium, chlorine and other elements that regulate the balance of water and liquid, as well as niacin, vitamin C and so on.

In the shoots of cabbage, the protein content is four times higher than an equal amount of tomatoes, calcium content is more than 12 times higher than tomatoes, and contains more carotene.

Hollow cabbage is alkaline food, after eating can reduce the intestinal ` acidity, to prevent intestinal flora imbalance, beneficial to cancer prevention.

Hollow cabbage is cool, staphylococcus aureus, streptococcus and other inhibitory effect, can prevent summer heat, cool blood detoxification, prevention of dysentery, prevention of infection.

Hollow cabbage contains niacin, vitamin C, etc., can reduce cholesterol, triglyceride, with the efficacy of lipid reduction and weight loss.

? Contained in the dietary fiber is richer, with the promotion of intestinal peristalsis, laxative detoxification effect.

Chinese medicine records, cabbage cool, pounded into juice to take food poisoning, external use can also play a role in reducing swelling, go to the role of poisonous fire.

Why do you say cabbage is poisonous

On the hot "cabbage is most likely to be enriched with heavy metals," said Ruan Guangfeng, director of science and technology department of the Center for Food and Nutritional Information Exchange, in an interview with Beijing Morning Post, said that the vegetables can not be separated from the natural environment to survive, so they contain traces of heavy metals. Survival of the natural environment, so which contains traces of heavy metal elements is normal, but there is no evidence that the hollow cabbage is easy to enrich heavy metals, vegetables purchased from regular channels, generally in line with national standards, you can rest assured that consumption.

In addition, "Hefei Evening News" has also reported that because any kind of vegetables can not be detached from the natural environment, so there are a small amount of heavy metals and pesticide residues in the vegetables is sometimes unavoidable. The state has strict limitations on the content of lead, cadmium, mercury, arsenic, chromium and other heavy metals in vegetables.

Some media have tested the hollow cabbage, the results show that its heavy metal content is far below the national safety standards, and is by no means "the first of the five poisons". Whether the heavy metal content of vegetables exceeds the standard, mainly depends on its origin, the environment, as long as the soil, water and other heavy metal content does not exceed the standard, the heavy metal in the vegetables naturally does not exceed the standard.

Do you need to blanch cabbage

Before frying cabbage, blanching is necessary. Because it can effectively prevent the hollow cabbage from being fried black. Blanching should also pay attention to 1 detail. First of all, pour the pot on the water to boil, when the water rolls the best to put a little bit of oil into it, and then put the empty cabbage into the blanching, time is not long, half a minute is good. Attention to this detail: blanched immediately after the cold water oh.

Blanching pot of cabbage can then be fried, slightly hot oil on the vegetables, stir fry with high heat. The shorter the frying time, the better, of course, does not mean that you have to eat raw. Stir-fry almost put salt, and then stir-fry two can be out of the pan!

However, if blanching is too much of a hassle for you, you can also try using lemon to keep the cabbage from turning black. Just soak the tomatoes in lemon juice before sautéing, which will reduce the rate at which the cabbage gets oxidized and blackened.

How long does it take to blanch cabbage

It takes 1 minute to cook in fresh water, and when you cook it, put the stems first and then the leaves.

The first step: clean the cabbage, stalks and leaves separately on two plates.

Step 2: Boil water in the pot, put a little salt, first into the stem part of the cabbage, cook for 30 seconds.

Step 3: When the time is up, add the leaf part and cook for another 30 seconds.

Step 4: Fish out the cooked stalks and leaves, and then put them under cool water before serving.