Despite rapid expansion, the company adhered to W.K.’s earliest values of innovative marketing, quality products and information about healthy diets. Nutrition messages, recipes and product information on cereal package side and back panels appeared regularly in the 1930's.

During the 1940's the Battle Creek plant supported the war effort by packing the military’s K-rations. Also during this time Kellogg Company became one of the first food companies to restore cereal nutrient content to whole-grain values and to voluntarily print nutrition labelling on packages.

In the 1950's, Kellogg continued developing educational games for use in the classroom with nutrition information in game formats for primary school teachers. The company’s practice of supplying educational materials has continued into the electronic age.