. oe 
4 
ney, 
v ¢ 
138 STORRS AGRICULTURAL EXPERIMENT STATION. 
that what might here be considered ‘' light to moderate muscu- 
lar work’’ would perhaps correspond to Voit’s ‘‘ moderate 
work,’’ while ‘‘moderately active muscular work’’ with us 
might approach more nearly to what would pass in Germany 
as ‘‘hard work.’’ Accordingly the standard of 112 grams of 
protein and 3,050 calories of energy proposed by myself would 
compare to about the same grade of activity as Voit’s standard 
of 118 grams of protein and 2,965 calories of energy. The main 
difference between the two is that the American formula calls 
for a little less protein and more energy than the German. I 
emphasize this because the two have been compared in such 
ways as to imply that the standards suggested by myself call 
for more protein than those of Voit and other European physi- 
ologists whereas for directly comparable cases the opposite is 
the fact. 
STANDARDS FOR PEOPLE IN PROFESSIONAL AND BUSINESS LIFE. 
Special attention should be called to a misunderstanding 
which has frequently obtained with regard to these dietary 
standards. ‘That of Voit for ‘‘a man at moderate work’’ and 
that of myself for ‘‘a man at moderately active work”’ are in- 
tended to apply to men engaged in normal labor. ‘They do not 
show the amount of nutrients ‘‘ required by an adult man under 
) 
normal conditions of life’’ unless those conditions include con- 
siderable muscular activity. Most business and professional 
men and many farmers, mechanics and laborers have much less 
muscular exercise, taking their activity the year round, than 
these standards provide for. The standard of 100 grams of 
protein and 2,700 calories of energy in the food actually eaten 
was intended to approach more nearly to the average demand 
of men of this class. Women with the ordinary occupation of 
the house apparently require less food, as do also not a few men 
who have very little muscular exercise. An attempt to express 
this still smaller need is made in the standard which calls for 90 
grams of total protein and 2,450 calories in the food actually 
eaten perday. Still smaller quantities suffice for many adults, 
especially the aged and infirm, and for young children. 



