On November 7,CCTV's"Half an Hour Economy"column reported the"hidden worries of vegetable butter",which once again put the safety issue of"vegetable butter"on the stage.Caused the attention of the public to vegetable butter. 　　The"vegetable butter"mentioned here,in fact,refers to"hydrogenated oil",sometimes called"vegetable butter","plant fat"and so on.Generally,the vegetable oil is obtained after the"hydrogenation"technology treatment,which has the characteristics of non-perishable,low production cost,flavor and taste comparable to animal oil.Vegetable oil produces a lot of trans fatty acids in the hydrogenation process,which is harmful to human health. 　　But look around at the delicious food,the hamburgers,the buns,the cookies,the cheesecake covered in cream...Most contain"trans fatty acids".According to a survey conducted by the State Food and Drug Administration,trans fatty acids were found in 87 percent of food samples,including all cheese products,95 percent of"foreign fast food",cakes,breads and so on. 　　Delicious on the one hand,and a health threat on the other,what does"hydrogenated oil"really bring us?