Breakfast cereal he launched the Cornflakes brand, which overnight captured a national market. Soon there were forty rival manufacturers in the Battle Creek area. His brother William K. Kellogg (1860–1951) worked for him for many years until, in 1906, he broke away, bought the rights to Cornflakes, and set up the Kellogg Toasted Corn Flake Company. William Kellogg discarded the health food concept, opting for heavy advertising and commercial taste appeal. Later, his signature on every package became the company trademark. The second major innovator in the cereal industry was Charles W. Post, a salesman who was admitted to Kellogg's sanitarium as
Kellogg Breakfast Council working for Kellogg's competition. The members were provided with a toolkit which included suggested wording for social media posts about cereal. The council members' relationship with Kellogg was not always revealed when the posts were made. In May 2016, the council members' contracts expired, and the council ceased to operate. Kellogg Breakfast Council The Kellogg Breakfast Council was an organization made up of nutrition experts, whose stated purpose on the Kellogg's cereal company website was to provide independent nutrition advice to the company. Council members included a professor of nutrition, a pediatrician, as well as several dietitians. The Breakfast Council