Back in 1917, the same year that she cofounded the American Dietetic Association (now the Academy of Nutrition and Dietetics), Lenna Frances Cooper authored an article in Good Health magazine that noted “in many ways the breakfast is the most important meal of the day, because it is the meal that gets the day started.” Good Health was published by the Battle Creek Sanitarium, a Michigan health resort run by Cooper’s mentor, John Harvey Kellogg, MD, the coinventor of corn flakes (his brother started the cereal business that would become the Kellogg Company).