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

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

Dinner, 6.30 P. M.—Milk-celery soup 121 grams, lettuce sandwiches 61
grams, creamed potato 65 grams, lettuce-apple-celery salad 74 grams,
coffee 70 grams, sugar 10 grams.

  Food.                    Grams.   Per cent Nitrogen.  Total Nitrogen.

  Coffee            100 + 70 = 170     ×     0.042    =    0.071 gram.
  Cream                         25     ×     0.40     =    0.100
  Sugar           9 + 9 + 10 =  28     ×     0.00     =    0.000
  Halibut, etc.                108     ×     3.02     =    3.262
  Mashed potato                 89     ×     0.26     =    0.231
  Biscuit                       48     ×     1.52     =    0.730
  Butter                        10     ×     0.10     =    0.010
  Tea                          100     ×     0.048    =    0.048
  Chocolate-cream cake          90     ×     0.99     =    0.891
  Celery-milk soup             121     ×     0.52     =    0.629
  Lettuce sandwich              61     ×     0.98     =    0.598
  Lettuce-apple salad           74     ×     0.21     =    0.155
  Creamed potato                65     ×     0.37     =    0.241
                                                          ------
              Total nitrogen in food                       6.966 grams.
              Total nitrogen in urine                      5.390

  Fuel value of the food      1285 calories.


NITROGEN BALANCE.—_Chittenden._

              Nitrogen                  Output.
              Taken in.  Nitrogen in Urine.  Weight of Fæces[33] (dry).

  March 20    6.989 grams.    5.91 grams.     3.6 grams.
        21    6.621           5.52            0.0
        22    6.082           5.94           12.0
        23    6.793           5.61           18.5
        24    5.057           4.31           23.0
        25    6.966           5.39           16.9
             ------          ------         ------
                                             74.0   grams contain 6.42% N.
             38.508          32.68      +     4.75  grams nitrogen.
             ------          ----------------------
             38.508 grams nitrogen.   37.43 grams nitrogen.

  Nitrogen balance for six days    =  +1.078 grams.
  Nitrogen balance per day         =  +0.179 gram.

  Average Intake.

  Calories per day      1613.
  Nitrogen per day      6.40 grams.

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

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