INGESTION OF PROTEIN DIETS. 



277 



TABLE 208. F. M. M., January 12, 1910. Sitting. (1-hour periods.) 



Beefsteak and bread: 



Amounts, 199 grams beefsteak, 38 grams bread; nitrogen, 8.91 grams; total energy, 493 cals. 



Fuel value: Total, 415 cals.; from protein, 55 p. ct. ; from fat, 25 p. ct. ; from carbohydrates 

 20 p. ct. 



Nitrogen in urine, 0.86 gram per hour. 1 

 Basal values (January 31 to February 19, 1910) : COj, 26.5 grams; 62, 23 grams; heat, 2 80 cals. 



'Amount does not cover the duration of the experiment by 1 \ hours ; sample included amount 

 for about 2 hours preceding the first period. 



2 Heat eliminated corrected for change in body-weight, but not for change in body-temperature. 



ing to about 13 grams of carbohydrate. This amount probably had 

 but little, if any, effect upon the carbon-dioxide production. The food 

 contained 9.55 grams of nitrogen. The results of the experiment are 

 given in table 209. Apparently the ingestion of the beefsteak and 

 bread produced a marked effect upon the metabolism of the subject, 

 as the increase continued throughout the 5-hour experiment, although 

 the nitrogen excretion per hour was not so great as in the experiment 

 on January 12. (See table 208.) It is unfortunate that a basal value 

 for this experiment could not have been determined on the same day, 



TABLE 209. F. M. M., January 14, 1910. Sitting. (1-hour periods.) 



Beefsteak and bread: 



Amounts, 201 grams beefsteak, 24 grams bread; nitrogen, 9.55 grams; total energy, 483 cals. 



Fuel value: Total, 399 cals.; from protein, 61 p. ct.; from fat, 26 p. ct.; from carbohydrates, 



13 p. ct. 

 Basal values (January 31 to February 19, 1910) : CC>2, 26.5 grams; 62, 23 grams; heat, 1 80 cals. 



'Heat eliminated corrected for change in body-weight, but, not for change in body-temperature. 



