About This File
Two men lived on an exclusive meat diet for 1 year and a third man for 10 days. The relative amounts of lean and fat, meat ingested were left to the instinctive choice of the individuals. At the end of the year, the subjects were mentally alert, physically active, and showed no specific physical changes in any system of the body. Vitamin deficiencies did not appear. Kidney function tests revealed no evidence of kidney damage. In these trained subjects, the clinical observations and laboratory studies gave no evidence that any ill effects had occurred from the prolonged use of the exclusive meat diet.