Clark is not exactly known for his healthy eating habits, but today he wants to share a list of the healthiest (and unhealthiest) restaurant chains.

Four chains got an F -- including Applebee's, IHOP, Outback and T.G.I. Friday's, according to a report published by Men's Health magazine.

On the other end of the spectrum, the highest score (A-) went to Chick-fil-A. No chain earned an A+.

In between those 2 extremes, you'll find a variety of chains you probably have eaten at in the past. See the complete listing of the healthiest restaurants and the unhealthiest restaurants...and bon appetit!