This is the last year that the original version of Kraft Mac & Cheese sold in the U.S. will contain artificial preservatives or synthetic colors.
In January, Kraft says its macaroni and cheese will be colored using paprika, annatto and turmeric.
The company is already selling a version, Kraft Mac & Cheese Boxed Shapes, with no artificial flavors, preservatives or synthetic colors.
There has been a huge shift away from processed foods in the U.S. and larger food producers are trying to follow their customers in that direction.
Kraft Foods Group Inc. is based in Northfield, Illinois. Its stock rose 87 cents to $87.60 Monday.