Ford thought of the body much like a car, as a combustion engine that needed fuel. With this mindset, Ford never went to the grocery store, but, instead, ate weeds out of his garden. He often ate sandwiches filled with weeds.
According to "What the Great Ate," Ford was also convinced that soybeans were the key to a nutritious diet. In fact, he instructed his cooks to prepare an all-soybean dinner for the 1933-34 Chicago Century of Progress exposition, included celery stuffed with soybean cheese, soybean croquettes, and apple pie with a soybean crust.