Original communication| Volume 14, ISSUE 6, P898-900, December 1943

Clinical study of relative efficiency for nitrogen metabolism of casein digest administered intravenously and protein ingested by mouth

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      Data are presented to indicate that the efficiency in utilization of nitrogen administered intravenously as casein digest in man closely approaches the efficiency of utilization of nitrogen when ingested orally as food protein. The conditions of the clinical experiments recorded here favored, in themselves, a greater loss of nitrogen during the periods in which the digest was administered, as compared with the periods in the same patient when nitrogen was ingested as food protein.
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        • Brunschwig A.
        • Clark D.E.
        • Corbin N.
        Postoperative Nitrogen Loss and Studies on Parenteral Nitrogen Nutrition by Means of Casein Digest.
        Ann. Surg. 1942; 115: 1091