The Department of Health recently announced the inspection of 25 kinds of cooking oils used in fast food industry, and found that 19 pieces * * contained trans fatty acids, especially margarine and crispy baking oil. Most people think that the saturated fatty acids in animal oil are higher than those in vegetable oil, so they spread vegetable cream on toast and crispy toast, or cook with vegetable oil. However, after years of research, it has been pointed out that vegetable cream
Harmful to human body, probably more harmful than animal oil.
Trans fatty acids are rare in nature, and only a few animal fats contain a small amount of trans fatty acids. According to foreign research, the hydrogenation of fat will produce trans fatty acids during processing, which may cause cardiovascular diseases and endanger health. Lactones and cyanide not only increase bad cholesterol, but also decrease the content of benign cholesterol, which interferes with the metabolism of essential fatty acids. It may cause some kind of cancer. In the manufacturing process of this kind of substance called Milk Marlene and Crispy, vegetable oil is hydrogenated, and 4/8 of the modern dietary concept, that is, unsaturated fatty acid molecules plus hydrogen molecules, cis fatty acids will become unnatural trans fatty acids and become solid or semi-solid substances.
Trans fatty acids can also cause the following problems: a. Infants are underweight; B. poor quality of breast milk; C. abnormal semen production; D. male testosterone secretion is reduced; E. increasing the risk of cardiovascular diseases; F. Increased cancer risk; G. the probability of prostate lesions increases; H. the probability of developing diabetes is increased; First, the probability of obesity increases; J. insufficient immunity: K. insufficient essential fatty acids. Trans fatty acids are one of the potential causes of arteriosclerosis. The US Food and Drug Administration (FDA) released it a few days ago, and they are already studying the mandatory requirements for food operators.
The content of trans fatty acids is indicated. The current regulations do not require that food labels contain trans fatty acids, but only total fatty acids or total fat content. Officials say they estimate that people will know what kind of fatty acids they are eating after mandatory labeling of trans fatty acids. In addition, they should be alert to those potential heart problems. Experts and scholars believe that this will reduce the number of vascular patients in the United States. On the other hand, mandatory labeling can also make food companies choose healthier ingredients for fear that people will not buy foods with high trans fatty acids content, thus achieving the effect of checks and balances. The FDA says it may start requiring food companies to comply with the new labeling regulations early next year.
The content of trans fatty acids in natural foods is very small, and the foods containing trans fatty acids that people usually eat are basically from foods containing margarine. For example, western cakes, chocolate pies, coffee companions, hot chocolate and so on. However, the names of trans fatty acids are different, and they are generally labeled as margarine (cream), artificial vegetable butter (cream), artificial fat, hydrogenated oil, shortening or non-dairy creamer on commodity packaging.
Butter, cream and other products sold in the market basically do not have the word "artificial". However, some butter products will be marked in the ingredient list as "refined from natural vegetable oil, and its main component is vegetable oil". If the words "refined" and "refined" appear, trans fatty acids may appear during processing. For example, Master Kong's egg yolk biscuits are made of refined vegetable oil, cyanide palm oil and cyanide soybean oil. Nestle coffee companion, its main ingredient includes edible cyanide vegetable oil. Products with the word "cyanide" in their ingredients all contain trans fatty acids.
Although most people don't know much about trans fatty acids, and we inevitably have to eat foods containing trans fatty acids every day, people can refer to the latest "China Nutritional Dietary Guide" to adjust their diet structure. The guide suggests that people should not consume more than 25 grams of oil every day. This means that as long as a person eats a small piece of cake a day, he can't put oil in the three meals of cooking, otherwise it will exceed the standard and increase cholesterol.
Although trans fatty acids have been proved to be harmful to human health, how much trans fatty acids are contained in food is within a safe range, and how much trans fatty acids people consume every day can ensure their health. At present, China's food safety department has no corresponding standards for these, and there is no method to detect whether trans fatty acids are contained in food and how much.
The new york Municipal Health Bureau held its first public hearing on1October 30th to solicit public opinions on this proposal. If the proposal is finally passed, new york will become the first American city to ban the sale of foods containing trans fats. KFC was forced to change its oil and gradually abandon trans fatty acids around the world. The relevant testing standards in China are under study. With the progress of the United States in this respect, China has obviously fallen behind.