INGESTION OF CARBOHYDRATES. 



193 



TABLE 120. //. B. W., April 9, 1907. Sitting. (2-hour periods.) 

 Popcorn: 



Amount, 187 grams; nitrogen, 3.26 grams; total energy, 824 cals. 



Fuel value: Total, 796 cals.; from protein, 11 p. ct. ; from fat, 11 p. ct. ; from carbohydrates, 



78 p. ct. 



Nitrogen in urine, 0.88 gram per 2 hours. 

 Basal values (April 4, 1907): CO 2 , 54 grams; O->, 46 grams; heat, 158 cals. 



Subject ate popcorn in 53 minutes. 



was found in both the carbon-dioxide production and the oxygen con- 

 sumption for all of the four periods, that for the oxygen consumption 

 being fairly constant. (See table 121.) There was also an increase 

 in the heat production in the first three periods. The respiratory 

 quotient was very high in the first period, then gradually lowered. 

 The positive increments in the carbon-dioxide excretion and heat pro- 

 duction in both experiments with popcorn indicate that the ingestion 

 of this food material has a definite effect upon the metabolism. 



TABLE 121. A. H. M., April 10, 1907. Sitting. (2-hour periods.) 



Popcorn: 



Amount, 199 grams; nitrogen, 3.47 grams; total energy, 877 cals. 



Fuel value: Total, 847 cals.; from protein, 11 p. ct.; from fat, 11 p. ct.; from carbohydrates, 



78 p. ct. 

 Basal values (March 6 and 9, 1907) : COa, 51 grams; Oj, 46 grams; heat, 164 cals. 



Subject ate popcorn in lj hours. 



