Sarah W. Tracy is Director of the Medical Humanities Program in the Honors College at the University of Oklahoma. Prof. Tracy examines Ancel Keys's role in developing the K Ration; it is part of a larger biography of Keys that places his 70-year career in the evolving context of the human and biomedical sciences. In helping to create the Army's first thoroughly modern combat ration, Keys introduced a holistic food-engineering standard for subsistence meals that embraced both food (and advertising) psychology and food technology.

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