What are the sources of trans fatty acids in daily intake?

Introduction: as we all know, trans fatty acids are also contained in some natural foods, but most of them are contained in some processed foods, which are then consumed by us everyday What kinds of foods do we eat trans fatty acids from? Pay attention to the safety of food under this safety net for everyone to share the relevant safety knowledge Most of the processed foods sold in supermarkets contain trans fatty acids If we often eat such foods, we can imagine our health So, what kind of food do we usually eat trans fatty acids from? Pay attention to the safety of food under this safety net for everyone to share the relevant safety knowledge What foods do we eat trans fats from? About 29% of the trans fat we eat comes from beef, mutton, dairy products, and 71% from processed foods The figure above shows the contribution of different foods to the intake of trans fat You can see clearly that nearly half of the trans fat eaten by Chinese people comes from vegetable oil, and beef, mutton and dairy products also have a large proportion The contribution rate of pastry, bread and biscuit cookies that are praised by the media is less than 5%, while puffed food, chocolate, instant coffee / coffee partner, milk tea / milk essence are not on the list at all The main sources of trans fatty acids are as follows: 1 Natural trans fatty acids are mainly from ruminant meat and dairy products with relatively low content; 2 Hydrogenated products of edible oil: in order to prevent edible oil from rancidity, extend shelf life and reduce the bad smell and taste produced in the heating process, the oil rose in the early 1960s The production process of hydrogenation, such as margarine and shortening Hydrogenation of oil can improve the melting point of oil, change the saturation of fatty acid, and make oil become solid at room temperature The trans fat will be produced by incomplete hydrogenation of vegetable oil, and the hydrogenated product of edible oil is the main source of trans fatty acids in food; 3 the edible oil treated by high temperature heating: in the refining and deodorization process of vegetable oil, it usually needs high temperature and long time heating to produce a small amount of trans fatty acids; 4 there is also the repeatedly used frying oil Usually fried or repeatedly fried at 220 ℃, especially in the kitchen of restaurants, the fried sticks and pancakes that are spread earlier, will produce trans fatty acids The longer the heating time is, the more trans fatty acids will be produced After we know which foods all trans fatty acids come from, we hope that in the future, when we eat food, we will choose from a healthy point of view To learn more about the health care knowledge of trans fatty acids, please continue to pay attention to this safety website Editor in charge: Hu Lingling