Trans fat has been in the news recently because Girl Scout Cookies (and many other foods) actually DO have trans fat, despite the fact that the nutrition label says 0g trans fat. How is this possible?
Labeling secrets: Read the ingredient list for partially hydrogenated oil. If the food contains less than 0.5g per serving, then the label can say 0g trans fat!!!
Trans fat is worse for you than saturated fat! Saturated and trans fat both raise your bad cholesterol, LDL, but trans fat also lowers your good cholesterol, HDL.
Common foods that may contain trans fat: Cereals, crackers, donuts, biscuits, hard margarine and many fast-food items. Look for trans fat on this Fast Food Nutrition Facts page before eating fast-food.
Try to avoid trans fat as much as possible!