A.H.M., February 19, 1906

The diet in this experiment consisted of 204 grams bananas, 63 grams potato chips, 29 grams potted chicken, 139 grams whole wheat breakfast food (dry), 103 grams graham bread, 284 grams oatmeal, 520 grams cream, 141 grams eggs, 150 grams peanut butter, a total of 1,633 grams. The fuel value of the food was 3,936 calories, of which 13 per cent came from protein, 54 per cent from fat, and 33 per cent from carbohydrates. As a result of the ingestion of this food, there was a large increase in the three factors of metabolism which continued throughout the experiment. (See table 241.) In the first two periods the increments in the heat production of 64 and 65 calories, respectively, correspond to an increase above basal of approximately 45 per cent. Even in the last period the increment in the heat was 41 calories. It can easily be seen from these results that a meal of this type taken in the morning would have an effect upon the metabolism for practically the entire working day.

Table 241. - A. H. M., February 19, 1906. Sitting. (2-Hour Periods). Heavy Breakfast (Mixed Diet)

Amount, 1,633 grams; nitrogen, 20.11 grams; total energy, 4,112 cals.

Fuel value: Total, 3,936 cals.; from protein, 13 p. ct.; from fat, 54 p. ct.; from carbohydrates, 33 p. ct. Nitrogen in urine, 1.72 grams per 2 hours. Basal values (February 12 and 14, 1906): CO2, 45 grams; O2, 40 grams; heat, 142 cals.

1Subject ate food in 41 minutes.

H. R. D., February 17, 1906

For breakfast this subject ate 77 grams dry cereal, 134 grams sugar, 381 grams cream, 123 grams apples, 658 grams milk, 205 grams baked beans, 31 grams bread, 29 grams peanut butter, 41 grams graham crackers, 146 grams eggs, and 3 grams potato chips, a total of 1,828 grams. This diet had a fuel value of 3,311 calories, of which 12 per cent came from protein, 43 per cent from fat, and 45 per cent from carbohydrates. The details of the experiment are given in table 242. As a result of the ingestion of this food there was a marked increase in the three factors of metabolism which continued throughout the experiment; the increase in the heat production for the last period amounted to 33 calories. The total increase in heat production of 181 calories represents approximately a 32 per cent increment in this factor; similar percentage increments were noted for carbon-dioxide production and oxygen consumption.

Table 242. - H. R. D., February 17, 1906. Sitting. (2-Hour Periods). Heavy Breakfast (Mixed Diet)

Amount, 1,828 grams; nitrogen, 14.64 grams; total energy, 3,439 cals.

Fuel value: Total, 3,311 cals.; from protein, 12 p. ct.; from fat, 43 p. ct.; from carbohydrates. 45 p. ct.

Nitrogen in urine, 1.25 grams per 2 hours. Basal values (February 6 and 10, 1906): CO2, 47 grams; O2, 42 grams; heat, 143 cals.

1Subject ate food in 51 minutes.

H. R. D., February 21, 1906

The experiment on this date was practically a duplicate of that with the same subject on February 17, as the diet had approximately the same fuel value. The proportions of energy from protein, fat, and carbohydrate were also approximately the same, although in this experiment a somewhat larger proportion of the energy was supplied by fat with correspondingly less from carbohydrates. The breakfast consisted of 81 grams graham crackers, 40 grams peanut butter, 26 grams cheese, 89 grams cereal, 56 grams sugar, 76 grams apples, 46 grams bread, 145 grams baked beans, 189 grams boiled eggs, 397 grams milk, and 634 grams cream, a total of 1,779 grams. The fuel value of the diet was 3,697 calories, of which 12 per cent came from protein, 54 per cent from fat, and 34 per cent from carbohydrates. The results of the experiment are given in table 243. Here again we find large increments in the metabolism throughout the experiment, with no evidence of a cessation at the end of the 8-hour experimental period. The total increase in heat production was not so large as in the experiment on February 17, being only 148 calories, or approximately 26 per cent of the basal value. The results show, however, like all of the experiments in this series, a prolonged stimulus to the metabolism which continued for the entire 8 or 9 hours following the ingestion of the food.

Table 243. - H. R. D., February 21, 1906. Sitting. (2-Hour Periods). Heavy Breakfast (Mixed Diet)

Amount, 1,779 grams; nitrogen, 17.09 grams; total energy, 3,845 cals.

Fuel value: Total, 3,697 cals.; from protein, 12 p. ct.; from fat, 64 p. ct.; from carbohydrates, 34 p. ct.

Nitrogen in urine, 1.22 grams per 2 hours. Basal values (February 6 and 10, 1906): CO2, 47 grams; O2, 42 grams; heat, 143 cals.

1Subject ate food in about 45 minutes.