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Physiological economy in nutrition, with special reference to the minimal proteid requirement of the healthy man: an experimental studyChittenden, R. H. (Russell Henry)

Science

Physiological economy in nutrition, with special reference to the minimal proteid requirement of the healthy man: an experimental study

Name: Physiological economy in nutrition, with special reference to the minimal proteid requirement of the healthy man: an experimental study
Author: Chittenden, R. H. (Russell Henry)

Chittenden, R. H. (Russell Henry)

Metabolism; Nutrition

Feb. 29    10.261 grams.    8.36 grams.
  Mar.  1     7.384           6.80
        2     8.487           8.28           85 grams.
        3     8.555           7.37
        4    10.427           8.22
        5    10.483           8.09
        6    10.265           8.20           28
             ------          ------         ------
                                            113     grams contain 6.21% N.
             65.862          55.32      +     7.017 grams nitrogen.
             ------          ----------------------
             65.862 grams nitrogen.   62.337 grams nitrogen.

  Nitrogen balance for seven days  =  +3.525 grams.
  Nitrogen balance per day         =  +0.503 grams.


NITROGEN BALANCE.—_Morris._

              Nitrogen                  Output.
              Taken in.  Nitrogen in Urine.  Weight of Fæces (dry).

  Feb. 29    10.466 grams.    6.40 grams.
  Mar.  1     7.720           6.64           45 grams.
        2     8.319           5.40           43
        3     8.750           6.55           41
        4    10.427           4.99           45
        5    10.483           5.38           38
        6    10.265           7.01           13
             ------          ------         ------
                                            225     grams contain 7.18% N.
             66.430          42.37      +    16.155 grams nitrogen.
             ------          ----------------------
             66.430 grams nitrogen.   58.525 grams nitrogen.

  Nitrogen balance for seven days  =  +7.905 grams.
  Nitrogen balance per day         =  +1.129 grams.


NITROGEN BALANCE.—_Coffman._

              Nitrogen                  Output.
              Taken in.  Nitrogen in Urine.  Weight of Fæces (dry).

  Feb. 29    10.466 grams.    8.63 grams.
  Mar.  1     7.825           7.48
        2     8.487           8.62
        3     8.750           7.18
        4    10.427           7.93           65 grams.
        5    10.483           7.67           83
        6    10.265           7.95           20
             ------          ------         ------
                                            168     grams contain 6.14% N.
              66.703         55.46      +    10.315 grams nitrogen.
             ------          ----------------------
              66.703 grams nitrogen.   65.775 grams nitrogen.

  Nitrogen balance for seven days  =  +0.928 gram.
  Nitrogen balance per day         =  +0.132 gram.

[Illustration: ZOOMAN

COHN

_Photographs taken at the close of the experiment._]


NITROGEN BALANCE.—_Steltz._

              Nitrogen                  Output.
              Taken in.  Nitrogen in Urine.  Weight of Fæces (dry).

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