The cereals are extruded expanded puffed grain products made with whole grain corn. The grain is processed and expanded (water is added and the corn is pulverized). Cooking of Kix occurs in the extruder and then the dough is formed into the desired shape by extrusion through a die. It was the first cereal manufactured with this process. Before the development of extruded expanded puffed grain cereals, only flake type cereals had been marketed.
Just months after the United States dropped an atomic bomb on Hiroshima, Kix offered an atomic bomb ring in exchange for a box top and 15 cents. The ring was purported to detect radiation.
General Mills introduced Berry Berry Kix in 1992 and Honey Kix in 2009. Currently, in regular Kix all total sugars are about 10% by weight, which equals out to about 3 grams of sugar per serving. The following is a list of Kix products: