In her book "Gulp: Adventures on the Alimentary Canal," Mary Roach discusses an intriguing case study from July 1903 involving an unnamed individual living in a Washington, D.C. hotel. This subject subsisted on a strict diet of a glass of milk and four Fletcherized corn muffins daily, creating what could be considered an optimal dietary scenario.

Over the course of eight days, this unusual diet led to remarkable productivity, as the subject managed to produce an impressive sixty-four thousand words. Interestingly, throughout this period, he only had one bowel movement, highlighting the efficiency of his intake and digestion during this experiment.