How to eat pork belly drink anti-fog?

Recently, Beijing is now hazy, and the topic of smog on the Internet has once again become a hot spot. Some people have reportedly reported that Korean media reports that pork belly contains unsaturated fatty acids, which can effectively help discharge fine particulates that have accumulated in human respiratory organs and lungs for a long time. Particles and heavy metals. In South Korea, sales of mineral water have soared. It is said that drinking mineral water is also anti-fog and haze. In this regard, Fan Zhihong, associate professor of food and nutrition at the Department of Nutrition and Food Safety at the Food College of China Agricultural University, said that there is no credible scientific basis for the so-called "anti-fog foods."

Fatty acids, unsaturated fatty acids are not a component of the diet

Fan Zhihong said that unsaturated fatty acids are called ingredients containing anti-smog elements, not what people lack in the diet, because whether it is cooking oil or nut oil seeds are rich in unsaturated fatty acids. Pork belly is certainly not the main source of unsaturated fatty acids, and it is not the recommended source. Many people who know a bit of nutrition knowledge have listened to the South Korean media and have said bluntly: Isn't saturated fat in meat fat? Where does the unsaturated fatty acid come from?

So, what is the state of the fatty acids in meat, is it really all saturated fatty acids? Fan Zhihong said that monounsaturated fatty acids are contained in meat. For example, pork contains 40%-50% saturated fatty acids, and unsaturated fatty acids account for about half, most of which are monounsaturated fatty acids, which account for about 45% of total fatty acids. However, this figure is not high because the proportion of unsaturated fatty acids commonly used in cooking oil in the country is as high as 70%-90%. Every day, Chinese cooking, braised, and fried Chinese only hate cooking oil and eat too much. The reason? To eat some unsaturated fatty acids, there is absolutely no need to help pork. Probably only in places where Japan and Korea use very little cooking oil can there be a need to increase the consideration of unsaturated fatty acids.

In South Korea, rumors that the so-called unsaturated fatty acids help rule out fine particles and heavy metals in the lungs do not see credible scientific evidence. Incredibly, how does unsaturated fatty acid run from the gastrointestinal tract to the alveoli? Does the respiratory tract produce unsaturated fatty acids? How do unsaturated fatty acids bind to heavy metals attached to respirable particles in the lungs? If there are really unsaturated fatty acids in the alveoli, what happens when it encounters heavy metals? Those with a bit of chemical knowledge know that if in an oxygen-rich environment, lead, cadmium, and other heavy metals can effectively catalyze the oxidation of unsaturated fatty acids, and Fat oxidation is not a good thing for the human body.

It has also been suggested that omega-3 polyunsaturated fatty acids have the effect of reducing the inflammatory response, and may have some beneficial effects on smog-induced airway inflammation. Unfortunately, fat pork contains almost no omega-3 fatty acids. Among the poor polyunsaturated fatty acids, almost all of them are omega-6 fatty acids, and these fatty acids increase inflammation. Therefore, if it is said that replacing pork with fatty fish (such as saury, spring fish, squid, etc.) is somewhat useful, it can also be slightly touched on the side of this reason. Fish and fishery products themselves have a certain degree of heavy metal pollution, and the excessive intake of animal protein and animal fat will increase the carcinogenic effect of carcinogens, so do not eat too much because of the increase in omega-3 fatty acids. eat. In fact, there are many foods that help reduce the inflammatory response. Eating more fruits and vegetables has this effect. Changing white rice flour into miscellaneous grains and potatoes also has this effect, and it is much safer than a large draft product.

"Running the lungs" may not be related to the resistance to "deterrence"

Someone now asks whether the traditional Chinese medicine recommended by the Chinese Academy of Traditional Chinese Medicine (TCM) recommends nourishing yin and lungs, and helps the liver to detoxify foods. Fan Zhihong said that I am not a Chinese medicine professional and I cannot give an effective assessment. We can understand that in ancient times there was no haze caused by such human pollution. What food has to do with haze, and the ancients could not do relevant research and leave us with reliable experience. Therefore, the personal opinion is that the so-called “Runfei” ingredients do not necessarily have special effects on smog. However, properly eating fungus and white fungus, to obtain some soluble dietary fiber, it is helpful to reduce the absorption of heavy metals in the gastrointestinal tract, and it is also somewhat beneficial to delay the increase in postprandial blood glucose and lipids, and is beneficial to health as a whole.

It is also said that mushroom foods are highly contaminated and can accumulate heavy metals in the environment. Fungus Tremella and other fungus species also belong to fungi. Can they eat? Fan Zhihong said that according to the results of current local determinations, there are indeed reports of excessive levels of heavy metals in fungi. , but the proportion is still very small, most of the products are qualified. The size of heavy metals in bacteria is mainly related to its growth environment. In areas where the soil and water have been contaminated by heavy metals, wild fungi are the most dangerous. However, artificially cultivated fungi grow on the medium and are not exposed to the external environment. Instead, they are relatively safe. Moreover, the heavy metals in the fungus are not soluble, and they are usually present in combination with dietary fiber. Even if they enter the body, the absorption rate is low. Therefore, under the premise of a small amount of food, various fungi do not need to worry about safety.

In addition, there is a legend that "eat more vegetables can fight haze." This argument is a bit plausible, but it is only "swapped". This is because dark green leafy vegetables such as spinach, amaranth, canola, and kale are rich in chlorophyll and carotene. Chlorophyll helps to reduce the mutagenic effects of certain chemical poisons. Carotene is converted into vitamin A in the body, which is beneficial to the resistance of epithelial tissues (including the digestive tract, respiratory tract, reproductive tract, mucous membranes of the eyes, skin, etc.). The ability to repair, where a variety of antioxidant substances also help reduce the inflammatory response. These effects may have certain benefits for preventing respiratory mucosal damage caused by smog. However, this does not mean that vegetables are anti-fog foods.

The main food sources of vitamin A are high cholesterol foods such as liver, kidney, butter, and egg yolk, but people are also concerned about cholesterol in these foods. The carotenoids in the dark green, orange and yellow fruits and vegetables can be converted into vitamin A, which at the same time helps to prevent various chronic diseases. According to the recommendations of our dietary guidelines, you should eat about half a catty of green leafy vegetables every day.

If a person rarely eats vegetables every day, it is because the fact that eating vegetables can resist haze increases the amount of green leafy food. The benefits of eating dark green leafy vegetables are too many. They are of great benefit in preventing cardiovascular and cerebrovascular diseases, diabetes, cognitive deterioration in the elderly and osteoporosis.

Lack of exercise is not healthy

Fan Zhihong emphasized in particular that don’t hear what foods are desperate for anti-fog and haze and use it to share the share of other natural foods. For example, some people heard that edible fungus can remove pollution, and Dunton used the fungus as a main dish. Some people heard that lily was good for the lungs and they used to eat lily. This practice is highly undesirable because a few ingredients do not replace the health benefits of other ingredients. The rational way is to add a small amount of these ingredients to the food and use the haze as an opportunity to increase the degree of diversification of food and pay more attention to the health of their diet.

In fact, smog is only one of the multiple health hazards that our body faces. In addition to haze, there are factors such as stress, bad mood, late nights, lack of exercise, food nutrition, tobacco and alcohol abuse, and abuse of prescription drugs. Although we can't really solve the problem of smog, we can't solve it in a short period of time, but all these other issues are aspects that everyone can control. Regrettably, many people will make such strong arguments: "The haze has not yet been resolved. What is the use of smokelessness?" "The haze has not yet been resolved. What is the use of my healthy life?" "Food is contaminated, and I pay attention to nutrition. What use?" This kind of logic is really harmful.

Health is affected by many factors. If everything else is done well, only the haze is a worrying concern. It's better than several dangers that threaten your health. It's like we face only one enemy when we fight. Is it better to be surrounded by enemies than to be attacked by the enemy and even be surrounded by the enemy, surrounded by multiple enemies, why do we leave it alone in terms of what we can manage, and only focus our attention on this aspect of smog?

In the end, it is still infinitely loose to oneself and always wants to push responsibility to the environment and push it to others. This kind of emotion can be understood, but if you think about it for the rest of your life, you can only hurt yourself. In the absence of a short-term solution to environmental pollution, all we can do is work hard to strengthen our own health. In this way, in a polluted environment, it is more resistant than others and lives better.

For those who may be less eager to eat on weekdays, it is indeed a very happy thing to take advantage of the haze and find reasons to eat pork and improve the quality of life. From this imagining, maybe in the future, we can still see the saying that “eat cheese cake and resist haze” and “eat mutton and anti-mist and haze” and all sorts of reasons that people have reason to eat more food.