| − | '''Trans-isomer unsaturated fat''', more commonly known as '''trans fat''', is a fat present in many popular foods, especially fast food and snack foods. They have been shown to be slightly more unhealthy than saturated fat. Specifically, trans fat lowers “good” cholesterol (HDL) and raises “bad” cholesterol (LDL),<ref>http://www.americanheart.org/presenter.jhtml?identifier=3045792#trans_effect_health</ref> unlike saturated fat which raises both. Trans fat is usually artificial, and almost never occurs naturally. It is created by partially hydrogenating vegetable oil. (Fully hydrogenated oil contains no trans fat, but higher levels of saturated fat.) | + | '''Trans-isomer unsaturated fat''', more commonly known as '''trans fat''', is a fat present in many popular foods, especially fast food and snack foods. They have been shown to be more unhealthy than saturated fat. Specifically, trans fat lowers “good” cholesterol (HDL) and raises “bad” cholesterol (LDL),<ref>http://www.americanheart.org/presenter.jhtml?identifier=3045792#trans_effect_health</ref> unlike saturated fat which raises both. Trans fat is usually artificial, and almost never occurs naturally. It is created by partially hydrogenating vegetable oil. (Fully hydrogenated oil contains no trans fat, but higher levels of saturated fat.) |