Timeline: A History of Single-Food Diets
See also: Can man live on fruit alone? Read more about fruitarianism.
The Diet:Forty-six days of nothing but "liquid bread," as practiced during Lent by Paulaner monks in Munich.
The Die-hards: An Iowa man emulates the monks with a beer-and-water-only Lenten diet in April 2011 and publishes his story.