The key to determining whether a food product contains TFA is to be able to recognize the ingredients in the nutrition label, and you can also judge based on the type of food, e.g. fried foods all contain TFA. When purchasing foods such as snacks or pastries, give preference to foods with 0 TFA. After purchasing food, pay attention to read the nutrition label on the food package to see how much trans fatty acid is contained. As long as the content of trans fatty acid in the food does not exceed 0.3%, the food can be called “zero trans fatty acid”. If the ingredient list of the food you buy contains words such as “cocoa butter, vegetable cream, vegetable butter, margarine, hydrogenated vegetable oil, hydrogenated fat, refined vegetable oil, hydrogenated vegetable oil, hydrogenated palm oil, ghee, shortening, margarine, phytolipids, vegetable shortening, etc., it usually means that the food is likely to contain TFA. Fatty acids. They should be eaten sparingly or not at all. Trans fatty acids include both natural and artificial trans fatty acids, which are harmful to the production of cell membrane constituent materials, metabolism of essential fatty acids, and the function of essential fatty acids, and may induce various diseases. You should pay attention to reading food composition labels, avoiding intake of TFA, and eating less fried and crispy pastry foods in your daily purchases.