Timeline: A History of Single-Food Diets
See also: Can man live on fruit alone? Read more about fruitarianism.
The Diet: Thirty straight days of McDonald's fare. Morgan Spurlock follows the diet for his documentary Super Size Me; he gains 24.5 pounds and experiences mood swings and sexual dysfunction.
The Die-hards: In 2011, a Chicago man adopts the plan before the Los Angeles Marathon, finishing with a personal best of 2:36.