In order to cover up the true identity of trans fatty acids, many packaged foods will add camouflage to trans fatty acids, which will make consumers hard to prevent, but it is not difficult to see through the camouflage.
In the ingredient list of packaged food, trans fatty acids often appear as follows:
Hydrogenated vegetable oil, refined vegetable oil, hydrogenated fat, margarine, vegetable butter, margarine, vegetable butter, creamer, butter, shortening, cocoa butter substitutes, etc.
If you see the above name in the food ingredients list, then this food must contain trans fatty acids, so give up buying decisively! It is wise to choose foods that do not contain trans fatty acids or are low in trans fatty acids!
Trans fatty acids (TFA) are the general names of unsaturated fatty acids with trans non-yoke double bond structure. Fatty acids are divided into saturated fatty acids (SFA) and unsaturated fatty acids (UFA), in which unsaturated fatty acids refer to fatty acids with at least one carbon-carbon double bond in the fatty acid chain.
If the two hydrogen atoms combined by two carbon atoms on the double bond are on the same side of the carbon chain and the spatial conformation is curved, it is called cis-unsaturated fatty acid, which is also the existing form of most unsaturated fatty acids in nature. On the contrary, if the two hydrogen atoms combined with two carbon atoms on the double bond are on both sides of the carbon chain and the spatial conformation is linear, it is called trans-unsaturated fatty acid.
According to the recommendation of Dietary Guidelines for China Residents, the intake of trans fatty acids should not exceed 2g per day.
To control the intake of trans fatty acids, we should not only eat less fried foods and avoid smoking when cooking, but also learn to read the ingredient list and easily identify packaged foods containing trans fatty acids.
Refer to Baidu Encyclopedia-Trans Fatty Acids for the above contents.