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Two Figures
Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania
Hydrogenated vegetable oil was more generally liked by young rats than butterfat or corn or cottonseed oils. When an unpopular fat was given as a choice, the rats selected much more casein and sucrose than when the choice was hydrogenated fat. It was concluded that choice of foods when components of a diet were offered was not related to the nutritional nature of the choices (i.e., whether a given choice was fat, carbohydrate, or protein), but was more probably dependent on the animals' subjective response to each particular choice.
Manuscript received 27 February 1948.