A consumer watchdog group said most major food companies need to do a better job of making sure they’re not marketing their junk food to kids.

The report from the Center For Science In The Public Interest graded about 120 companies’ marketing policies. The center said three-fourths of the companies got “F”s for having weak policies or none at all focused on children.

The highest grade went to Mars Inc., because the center said the company doesn't target kids 12 and under. Companies that failed included Chick-Fil-A, Denny’s and T.G.I. Friday’s.

For more on the report, click here.