Canola..
"However… what most people don’t know, is that vegetable oils contain significant amounts of trans fats.
In one study of common soybean and canola oils in U.S. supermarkets, the trans fat content in them was measured at 0.56% to 4.2% of total fatty acids. These are huge amounts (65).
Surprisingly, the trans fat content is rarely listed on the label."
"2. Linoleic Acid Builds up in Cell Membranes
Linoleic Acid in Human Body Fat
Fats are more than just sources of energy.
Some of them have potent biological activity, and some remain in the body where they are used for structural and/or functional purposes.
It turns out that linoleic acid, the main fatty acid in vegetable oils, does accumulate in the fat cells of the body, as well as in cell membranes (10, 11).
The graph below was compiled by Dr. Stephan Guyenet, based on 6 different studies that measured the linoleic acid content of body fat from the years 1961 to 2008 (12, 13,14, 15, 16, 17).
What this means, is that our excessive consumption of vegetable oils is leading to actual structural changes within our body’s tissues."
http://eatlocalgrown.com/article/13666-serious-concerns-about-vegetable-oils....