引用来源：
Carpenter KJ. Nutritional studies in Victorian prisons. J Nutr. 2006 Jan;136(1):1-8.
McCollum, E. M. (1957). A history of nutrition. Houghton Mifflin Company, Boston, p.124.
Fick, A. and Wislicenus, J. (1866). On the origin of muscular power. Philosophical Magazine & Journal of Science London (4th ser., No. 212), 31, 485.
Chittenden, R. H. (1904). Physiological economy in nutrition, with special reference to the minimal protein requirement of the healthy man. An experimental study. New York: Frederick A. Stokes Company.