Granula was invented in Dansville, New York by Dr. James Caleb Jackson at the Jackson Sanitarium in 1863. The Jackson Sanitarium was a prominent health spa that operated into the early 20th century on the hillside overlooking Dansville. It was also known as Our Home on the Hillside; thus the company formed to sell Jackson's cereal was known as the Our Home Granula Company. Granula was composed of Graham flour and was similar to an oversized form of Grape-Nuts. A similar cereal was developed by John Harvey Kellogg. It too was initially known as Granula, but the name was changed to Granola to avoid legal problems with Jackson.