The worst fats are the trans fats, followed by saturated, poly and then mono being the best kind to get. Trans fats are not as yet required to be on most products although some have started saying how much is in the item. But there is a way to figure out how many trans fats you are consuming. Look on the label and add up the 3 diff kind of fats that are listed, which will normally be mono, poly and unsaturated. The total of these 3 should equal the total amount of fat stated. If it does not, then the remaining amount is comprised of trans fats. Hope that helps.