+------------+-----------------+----------------+-----------------+ | |Actually consumed|Calculated for a| Utilizable Food | | | by the Subject, | Body-Weight of |for a Body-Weight| | | 71.5 Kilos. | 70 Kilos. | of 70 Kilos. | +------------+-----------------+----------------+-----------------+ |Proteid | 76.2 grams | 74.0 grams | 61.4 grams | |Fat | 109.0 | 106.1 | 95.5 | |Carbohydrate| 168.9 | 164.2 | 152.7 | |Alcohol | 5.5 | 5.3 | 4.7 | |Fuel value | 2057 calories | 1999 calories | 1766 calories | +------------+-----------------+----------------+-----------------+ During this period, it is to be noted that the fuel value of the day’s food averaged only 2057 calories, which for a body-weight of 70 kilograms would amount to less than 2000 calories. The proteid consumption, however, was larger than we have found to be necessary for a man of the above weight. Still, the facts are in harmony with the general principle that there is no necessity for a daily intake of food such as common usage dictates, there being obviously a wide difference between a minimal daily consumption of 118 grams of proteid and 3000 or more calories, such as is assumed to be needed by a man of 70 kilos, and 74 grams of proteid with 1999 calories. Under the latter conditions, the subject gained a kilogram in weight during the eight months, while the establishment of nitrogen equilibrium testifies to the now generally accepted view that it is quite possible for the body to establish nitrogen equilibrium at different levels, _i. e._, with different quantities of proteid food and different fuel values. The diet made use of by Neumann was a mixed one, containing a great variety of animal and vegetable foods, but withal simple and moderate in quantity. Calculated per kilogram of body-weight, the average consumption of food material per day during the three periods was as indicated in the following table: DAILY FOOD CONSUMPTION PER KILOGRAM OF WEIGHT +-------------+--------+-----+-------------+--------+--------+ | |Proteid.| Fat.|Carbohydrate.|Alcohol.|Calories| +-------------+--------+-----+-------------+--------+--------+ | | grams |grams| grams | grams | | |First Period | 0.99 | 1.3 | 34.5 | 0.56 | 34.7 | |Second Period| 1.10 | 2.3 | 33.4 | . . | 59.7 | |Third Period | 1.00 | 1.5 | 23.4 | 0.07 | 28.5 | +-------------+--------+-----+-------------+--------+--------+