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To the Editor:—
I read with great interest your editorial about Max Rubner (194:86, 1965) because I was a pupil of his at the University of Berlin in 1927 and 1928. Although retired in 1924, he was asked to occupy the chair of physiology after Hoffman's death, until a new incumbent could be found. It was during this period that I had the good fortune to study under him.Your article recognized him as the leader in the field of metabolism of foodstuffs. He was also the father of a new branch in physiology, the Physiology of Nutrition, because it was he who established the caloric values for the three nutrients, as you quoted, and also degrees grees of their interchangeability in nthe body metabolism. The protein minimum and protein optimum, the conversion of carbohydrates into fat, the ideal combustion of fat in the presence of carbohydrates, these and
E. Guensberg. Max Rubner. JAMA. 1966;195(9):789. doi:10.1001/jama.1966.03100090123040