The Worst Thing You Can Order At 20 Fast Food Chains

It's easy to go wrong with fast food.

We studied nutritional data from 20 different restaurant chains to find the worst of the worst.

Find out which items have the most calories, fat, saturated fat, sodium, and cholesterol.

You'll want to steer clear of them if you're watching your waistline.

Here are the offenders, in order of least to most calories.