Influential American physiologist (1904-2004) who studied the influence of diet on health, known for developing two famous diets: K-rations, formulated as balanced meals for combat soldiers in World War II; and the heart-healthy Mediterranean diet, which he popularized with his wife Margaret. Vintage matte-finish 7.75 x 9.5 head-and-shoulders photo of Keys in a suit and tie, signed and inscribed in fountain pen, "For George R. Sanders, and the 'Four Freedoms Room,' Ancel Keys, 3 February 1961.” In very fine condition, with trimmed edges.
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