This company invented and popularized the toasted grain flake cereal - a concoction originally developed by a vegetarian physician to vary the diet of his patients. The company was founded in 1906.

Kellogg Company, founded in 1906 by Will Keith Kellogg, invented and popularized toasted grain flake cereal. The flakes were originally developed by Dr. John Harvey Kellogg (Will's brother) at the Battle Creek Sanitarium as a nutritious food for patients. W.K. Kellogg turned this invention into a global breakfast phenomenon. General Mills (1928), Quaker Oats (1877 but focused on oats), and Kraft (1903 but focused on cheese) are different.