pickles are side dishes that almost every household has eaten. They first appeared just to make it easier to preserve vegetables. In difficult times when fresh vegetables are difficult to obtain, pickles are an important source of food.
However, as people's health awareness becomes stronger and stronger, relevant summary has been made on foods that are prone to harm the body, and pickles are within the rising range.
Some people even believe that the nitrite contained in pickles is very high, which will increase the risk of cancer. It contains a lot of sodium elements, which will increase the risk of cardiovascular diseases such as hypertension . Is this statement really scientific basis?
pickles are "delicious in the world" or "health killer"? WHO puzzle
WHO : Pickled vegetables are carcinogens of 2B! Carcinogens will also be produced during pickling. Nitrite vegetables themselves contain nitrate , which is mainly derived from nitrogen fertilizer and nitrogen-containing compounds in the soil.
Generally speaking, nitrates will not harm the human body. However, after pickling, soaking and soy sauce processing, nitrate will be converted into nitrite under the action of reducing bacteria.
nitrite is a 2A carcinogen and has a moderate toxic effect on the human body. Although the evidence for carcinogenicity in humans is limited, there is sufficient evidence for carcinogenicity in experimental animals.
But But House Teacher Tian said: Generally speaking, when people buy pickles, the nitrite contains very low, and the harm to the body is minimal.
There will be a "gradient change" in the pickled food. The nitrite content reaches its peak in 4 to 8 days, and then it will gradually fall. After about a month, the nitrite content in the pickled food will basically disappear, so everyone can eat it with confidence.
In fact, although nitrite is toxic, it can also inhibit Clostridium sporiasis, which is useful to the human body. Furthermore, nitrites need to reach a certain dose to cause harm to the human body. A small part of them are generally excreted through urine, so the human body does not need to worry too much.
But pickles are not eaten as much as you want. The nitrite in pickles does not necessarily cause cancer, but adding a lot of salt when pickling pickles is the real food hidden danger.
Kimchi, sauerkraut, pickled pepper, etc., no matter which pickled pickled vegetables, they need to be marinated with a lot of salt. After fermented salt penetrates into the food, the concentration can reach 10%~14%.
Recommended intake of salt according to dietary guidelines: only 6 grams per person per day. Although pickles contain salt and have a lot of flavor, this "invisible salt" is easier for people to eat inadvertently excessively.
sodium ion intake too much, the body's blood pressure will increase, causing vascular stenosis and damage vascular endothelial cells , etc. will also cause metabolic burden in the body, and even accelerate calcium ion loss and cause osteoporosis and kidney diseases.
Eating high-salt foods all year round will increase the chance of stomach damage. High-salt foods enter the stomach and osmotic pressure continues to increase, which will directly cause damage to the gastric mucosa. At the same time, it will inhibit prostaglandin synthesis, reduce gastric mucosa resistance, and even infection with Helicobacter pylori, increasing the chance of stomach lesions.
Why do the older generation often eat pickles because they are poor, but rarely get high blood pressure or cancer?
. Now the average life expectancy has increased
In the 1950s, the average life expectancy in my country was only about 50 years old. As of now, according to data released by the National Health Commission, the average life expectancy in my country has reached 77.3 years.
The older the age, the greater the risk of blood pressure rise. As we gradually grow older, more and more accumulations will accumulate on the inner wall of blood vessels, sediments, and blood vessel walls will thicken, harden, lose elasticity, and the lumen will also become narrow.
As we age, all organs of the body will age. At this time, the functions of immune organs will become worse and worse, so it will directly affect the health and lifespan of a person.
. Nowadays, people have more ways to consume extra salt.
In the 1950s and 1960s, people were restricted by the times and economic conditions, and there were very few types of foods that could choose, even some foods had limited salt content.
Nowadays, people's diet is not only becoming more and more diverse, but they also like to eat high-salt and high-fat foods. Various condiments are indispensable in the cooking process. They will unknowingly consume a large amount of sodium salt, which is more likely to cause serious damage to blood vessels.
. Nowadays, people's diet has become more refined
In the past, people used coarse grains and potatoes as their staple food, and they also ate some vegetables, fruits, etc. in their daily life. Although the pickles I eat have high salt content, the potassium content of coarse grains and fruits is also rich in coarse grains and fruits, which can balance the sodium and potassium levels in the body. Potassium has the effect of promoting sodium excretion, so that the salt content they consume is relatively low.
Nowadays, people's staple foods are mainly refined white rice and flour. Fine grains contain a certain amount of sodium. The amount of potassium consumed from food is not as much as before. When the salt intake is high, the sodium and potassium levels in the body cannot be balanced, which will lead to an increase in sodium .
. Nowadays, the amount of physical labor in humans has been reduced.
1 People in the 1950s and 1960s, because the problem of food and clothing has not been solved yet, and for the sake of industrialization, most people need to go to the fields to work at this time. Human labor is still relatively large. When sweating profusely, the salt in the body will be discharged from the body with sweat, and the salt is lost more.
Most people nowadays work in the office facing the computer, with less and less activity. In addition, eating heavy-tasting foods will lead to excessive salt intake, which will not only cause blood pressure to soar, but will also cause damage to the functions of various organs and even increase the chance of cancer.
extension - How to eat pickled vegetables to be healthy?
Before, I hope everyone must know how to eat to reduce the damage to the body. After pickling into pickles, you can boil it in water for two minutes or soak it for 30 minutes or wash it with hot water to remove the residual nitrite in the salt to a certain extent.
Usually eat detoxification foods, such as garlic, tea, vitamin C, etc., which have a detoxification effect. It can not only eliminate bacterial infections, but also prevent nitrite from converting into nitrosamine , eliminating cancer risk.
For example, allicin in garlic can inhibit nitrate reduction bacteria in the stomach and significantly reduce nitrite in the stomach; tea polyphenols in tea can block the formation of nitrites;
fresh vegetables rich in vitamin C can prevent the formation of nitritesamines in the stomach, thus inhibiting the carcinogenic effect of nitritesamines. In the process of pickling pickles, we can mix and match Xueli Dong , lettuce, chili peppers, and garlic in layers
pickled pickles taste delicious, but for patients with chronic diseases such as high blood pressure, high blood lipids, high blood sugar and high uric acid, it is best not to consume too much at one time, especially the nutrients needed by middle-aged and elderly people and young children. They should achieve a balanced nutritional balance between meat and vegetables, and do not consume a certain food alone, otherwise it may cause serious damage to their own health.
