Fish, fried shrimp, fried chicken wings, French fries, fried bananas, fried stinky tofu, biscuits, instant noodles, donuts, do you like it? On behalf of the organization, I hereby solemnly inform you that these fried foods will soon be cool. On May 14, 2018, the World Health Organization issued an action guidance program called "Replacement", which will completely eliminate artificial trans fats used in the global food supply chain by 2023 within five years. Where is trans fat? What harm to the human body? Why did the World Health Organization make such a big move? Let's go behind the scenes to make decisions.
There are two types of trans fats, natural and non-natural. Fats are present in adipose tissue and dairy products of ruminants such as cattle and sheep. They are produced by the biohydrogenation of enzymes in animal foods; the non-natural trans fats can be subdivided into intentional ones. Production and unintentional production of these two types, intentionally produced mainly from hydrotreated vegetable oil; unintentionally produced during the high temperature processing of oil or cooking, liquid oil at 180 degrees Celsius heating will produce trans fat, heating time The longer trans fats are produced. A pot of oil, open fire, fried chicken wing French fries, deep-fried French fries fried stinky tofu, fragrant crisp food will carry a lot of trans fat.
After taking the animal oil to the table, many people ate, but With limited production, animal solid fats become scarce and expensive, so chemists began to think of ways to solidify liquid oils. In 1890, a French man named Sabatiere invented the hydrogenation technique and received the Nobel Prize in Chemistry in 1912. In 1901, the German used a hydrogenation technique to treat cottonseed oil, which produced a butter-like solid. In 1911, Procter & Gamble of the United States developed hydrogenated cottonseed oil that is "better than butter."
Hydrogenated vegetable oils are cheaper and more stable than animal fats and are not refrigerated, can be stored for a longer time, in addition, the processed oils used in food processing will have a better taste, so quickly get widespread promotion. At that time, the Food and Drug Administration had not yet been established. Whether it was healthy or not was no matter. By 1957, margarine sales exceeded natural butter.
Someone produces and promotes people, and of course they look for a professional team. Platform. According to the prevailing view, it is believed that the high fat content of animal fats is the cause of the rise in death rates from cardiovascular diseases, while plant hydrogenated oils contain unsaturated fatty acids that are not harmful to health. The 1950s was a watershed for oils and fats, and the proportion of vegetable fats consumed exceeded that of animal fats. Although some studies have also pointed out that hydrogenated vegetable oil can lead to elevated human cholesterol and increase the risk of coronary heart disease, it is found in anatomy that there are artificial trans fats in the blood vessel walls of people who have died of heart disease, and pigs are found in foods containing large amounts of trans fat. Pigs have severe arterial blockage. However, these findings have not attracted attention.
A 1997 follow-up of more than 80,000 women for 14 years The results of the study revealed that trans-unsaturated fatty acids can significantly increase the incidence of heart disease. The health hazards of trans fats have begun to attract attention. Since then, a large number of countries have conducted long-term research. The result of a meta-analysis in 2006 was that the trans fat supply was increased by 2% and the risk of coronary heart disease would increase. Increased by 23%. After analyzing the reasons for this, it is believed that trans fat will increase the content of total cholesterol and low-density lipoprotein cholesterol, and at the same time reduce the content of high-density lipoprotein cholesterol. At the same time, it will increase the viscosity and cohesiveness of blood, which will make it easier for human blood vessels. It brings about the formation of thrombus. The study also found that trans fats play an important role in the pathogenesis of Alzheimer's disease; they increase the risk of cognitive decline; affect the development of infants and young children; increase women's risk of type 2 diabetes and reduce insulin sensitivity; even some studies believe that trans Fat is also associated with breast cancer development. A 2012 US study found that people who eat trans fats, regardless of agePeople are more aggressive; the 2015 study found that reducing intake of trans fats will help people to better control their emotions.
World Health Organization believes that trans fats are discontinued for maintenance of health And saving lives is extremely important because more than half a million people die from cardiovascular disease every year due to the intake of trans fats. At present, industrially produced trans fats are mainly found in hardened vegetable fats such as margarine and ghee, and snacks, baked goods, fried foods, etc. are mostly produced using such oils. Therefore, it is necessary to start from the food supply chain and thoroughly The use of broken trans fats. According to the plan of the World Health Organization, within five years, actions will be taken from such aspects as review, promotion, legislation, evaluation, promotion and promotion.
According to past experience, Denmark is the first country that restricts industrial production of trans fats. By issuing a ban, some hydrogenated oils are banned. The gratifying result is the rate of decline in cardiovascular disease mortality. It is much higher than other countries; New York in the United States has also followed the example of Denmark and began to eliminate the effects of trans fat production in industrial production 10 years ago. The World Health Organization believes that trans fat is an unwanted toxic harm compound and there is no reason to let it continue to poison people around the world.
World Health Organization recommends total trans fat intake The amount is limited to less than 1% of the total energy intake, which is based on the total daily energy intake of the human body. Trans fat intake should be limited to 22 grams or less. There is evidence that trans fats can exacerbate inflammation and endothelial dysfunction, and the use of unsaturated fatty acids instead of trans fats can reduce the adverse effects of lipids. At present, the United States has already started its operations and will require that hydrogenated vegetable oils no longer be added to processed foods as of June 18, 2018. We still don't know how to deal with these fried chicken shops, but for the melon people, since the World Health Organization has declared war on trans fats with unprecedented intensity, we should consider the diet structure from the perspective of health and start from ourselves. Let's reduce the fried food first.
Whoever loves, whoever gives health.
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