Protose

Kellogg credited his interest in meat substitutes to Charles William Dabney, an agricultural chemist and the Assistant Secretary of Agriculture. Dabney wrote to Kellogg on the subject around 1895.[16]: 119 

In 1896, Kellogg introduced but did not patent "Nuttose", the first commercially produced alternative to meat. Nuttose was made primarily from peanuts and resembled "cold roast mutton".[42]: 6  By seasoning or marinating, Nuttose could be made to taste like fried chicken or barbeque. Served with mashed potatoes and vegetables, it could mimic a traditional American meal.[69]

On March 19, 1901, Kellogg was granted the first United States Patent for a "vegetable substitute for meat", for a blend of nuts and grain cereals called "Protose". In applying for US patent 670283A, John Harvey Kellogg, "Vegetable-food Compound", issued June 8, 1899, Kellogg described Protose as a product "which shall possess equal or greater nutritive value in equal or more available form... By proper regulation of the temperature and proportions of the ingredients, various meat-like flavors are developed, which give the finished product very characteristic properties."[42]: 6 [70] Nuttose and Protose were the first of many meat alternatives.[69]