Yum Brands Inc.’s Taco Bell and Pizza Hut restaurant chains plan to remove artificial flavors and colors from most of their food, joining a host of other food companies that are opting for more natural ingredients in the face of changing consumer tastes.

Taco Bell is aiming to replace the ingredients with natural alternatives by year-end. The chain said it would also take out additives like added trans fats and hopes to remove additional artificial preservatives and additives by the end of 2017.

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