Output. Nitrogen in Nitrogen through Weight of Excrement Food. Kidneys. (dry). 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. 29.652 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. Total nitrogen content of the day’s food = 6.621 grams. _June 24._ Breakfast.--Coffee 96 grams, cream 32 grams, sugar 8 grams. Lunch.--Creamed codfish 89 grams, baked potato 95 grams, butter 10 grams, hominy gems 58 grams, strawberries 86 grams, sugar 26 grams, ginger snaps 47 grams, water. Dinner.--Cold tongue 14 grams, fried potato 48 grams, peas 60 grams, wheat gems 30 grams, butter 11 grams, lettuce-orange salad with mayonnaise dressing 155 grams, crackers 22 grams, cream cheese 14 grams, ginger snaps 22 grams, coffee 58 grams, sugar 10 grams. Total nitrogen content of the day’s food = 6.331 grams. _June 25._ Breakfast.--Coffee 101 grams, cream 36 grams, sugar 13 grams. Lunch.--Omelette 50 grams, bacon 9 grams, French fried potato 23 grams, biscuit 29 grams, butter 8 grams, ginger snaps 42 grams, cream cheese 17 grams, iced tea 150 grams, sugar 15 grams.