Output. | |||
Nitrogen in | Nitrogen through | Weight of Excre- | |
March 20 | 6.989 grams. | 5.91 grams. | 3.6 grams. |
21 | 6.621 | 5.52 | . . |
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. | |||
In this particular period of six days, the body was really gaining a little nitrogen, i. e., storing away a small amount of proteid for future use, although it may be granted that the amount was too small to have any special significance. During this period, the average daily intake of nitrogen was 6.4 grams, equal to 40 grams of proteid food. The average daily output of nitrogen through kidneys and excrement was 6.24 grams. The average daily output of metabolized nitrogen, through the kidneys, was 5.44 grams, corresponding to the breaking down of 34 grams of proteid material. Further, it should be stated that the total calorific value of the daily food during this period was less than 2000 calories. Let me add now a final balance period taken at the close of the nine months’ trial:
Output. | |||
Nitrogen in | Nitrogen through | Weight of Excre- | |
June 23 | 6.622 grams. | 5.26 grams. | 10.6 grams. |
24 | 6.331 | 5.30 | 30.7 |
25 | 4.941 | 4.43 | 14.2 |
26 | 5.922 | 4.66 | 11.9 |
27 | 5.486 | 4.98 | 15.2 |
| ──── | ─── | ─── | |
| 82.6 grams contain 6.08% N. | |||
| 29.302 | 24.63 + | 5.022 grams nitrogen. | |
| ───── | ────────── | ──── | |
| 29.302 grams nitrogen. 29.562 grams nitrogen. | |||
Nitrogen balance for five days = -0.350 gram. | |||
Nitrogen balance per day = -0.070 gram. | |||
Output. | |||
Nitrogen in | Nitrogen through | Weight of Excre- | |
June 23 | 6.622 grams. | 5.26 grams. | 10.6 grams. |
24 | 6.331 | 5.30 | 30.7 |
25 | 4.941 | 4.43 | 14.2 |
26 | 5.922 | 4.66 | 11.9 |
27 | 5.486 | 4.98 | 15.2 |
| ——— | —— | —— | |
| 82.6 grams contain 6.08% N. | |||
| 29.302 | 24.63 + | 5.022 grams nitrogen. | |
| ——— | ——————— | —— | |
| 29.302 grams nitrogen. 29.562 grams nitrogen. | |||
Nitrogen balance for five days = -0.350 gram. | |||
Nitrogen balance per day = -0.070 gram. | |||
In this period of five days, the average daily intake of nitrogen was 5.86 grams, corresponding to 36.6 grams of proteid food. The average daily output of metabolized nitrogen was 4.92 grams, implying the breaking down in the body of only 30.7 grams of proteid material per day. The fuel value of the daily food, calculated as closely as possible, was less than 2000 calories. The body was essentially in nitrogen equilibrium, the minus balance being too small to have any special significance.
It will be instructive to consider next the actual character and amount of the diet made use of on several of these balance days:
March 21.
Breakfast.—Coffee 119 grams, cream 30 grams, sugar 9 grams.
Lunch.—One shredded wheat biscuit 31 grams, cream 116 grams, wheat gem 33 grams, butter 7 grams, tea 185 grams, sugar 10 grams, cream cake 53 grams.
Dinner.—Pea soup 114 grams, lamb chop 24 grams, boiled sweet potato 47 grams, wheat gems 76 grams, butter 13 grams, cream cake 52 grams, coffee 61 grams, sugar 10 grams, cheese crackers 16 grams.