Sure, you’ve heard of them. You’ve probably spotted them on nutrition labels. You may have even read up on them. But how well do you really know the fats? Here’s your chance to get better acquainted with the Fats family: the Bad Fats Brothers and the Better Fats Sisters.

Like any family, the Fats share some common traits. For example, they all give your body energy and they all have 9 calories per gram. But some fats are better than others.

Click on the links below to meet the Bad Fats Brothers, Sat and Trans, and the Better Fats Sisters, Mon and Poly. Find out what they’re like and where they hang out to help you decide how much you want them as your friends.