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Department of Chemistry, University of Pittsburgh, Pittsburgh
In the cases of thiamine, riboflavin, and pyridoxine, an appetite for foods containing the vitamin is developed in animals previously fed a diet deficient in that vitamin. Normal animals do not show such appetites. Appetites for pantothenate cannot be developed in pantothenate-deficient animals unless the choices are labeled with a flavor, and even in this case some animals make the wrong choice. It is concluded that appetite for foods containing pantothenate is a learned appetite and not a true hunger.
Manuscript received 12 June 1946.