McDonald's drops preservatives from burgers

McDonald's classic burgers are getting a makeover.

The fast-food giant is ditching artificial preservatives, flavors and colors from its seven classic burgers sold in the U.S.

So classics like the Big Mac and Quarter Pounder with Cheese are now preservative-free

Pickles are still made with an artificial preservative, but McDonald's says customers can skip it.

The problematic ingredients were American cheese, Big Mac special sauce and some buns.

Prices of menu items are not expected to go up.

McDonald's says around one-third of its sandwiches still have artificial colors, flavors or preservatives, including Egg Mcmuffins and Filet-o-Fish.