1000 



ANNUAL REPORT OF THE 



Off. Doo. 



Dietary Standards. 



Dietary studies have becu made in considerable numbers in dif- 

 ferent countries. The rc^sults of such studies and experiments to 

 determine tlie amount of food required by men engaged in different 

 occupations have resulted in the adoption of dietary standards. 

 Some of these follow: 



Standards for Daily Dietaries. 



Chara«ter of Work to bt Performed. 



European : 



Man at moderate work 



Man at hard work 



American: 



Man without muscular work 



Man with light muscular work 



Man with moderate muscular work, 



Man with hard muscular work 



o 

 •3 

 o 



3 



fa 



3,055 

 3,370 



3,000 

 3,000 

 3,500 

 4,500 



The table of composition of food materials shows the amount of 

 water, protein, fat, carbohydrates, and ash content and the total 

 fuel value per pound for each kind of food named. The protein, 

 fac and carbohydrates all furnish energy. In addition to furnish- 

 ing energy, protein forms tissue. Since protein and energy are the 

 essential features of food, dietary standards may be expressed in 

 their simplest form in terms of protein and energy alone. 



Observation has shown that as a rule a woman requires less food 

 than a man, and the amount required by children is still less, vary- 

 ing with the age. It is customary to assign certain factors which 

 shall represent the amount of nutrients required by children of dif- 

 ferent ages and by women as compared with adult man. The 

 various factors which have been adopted are as follows: 



Factors used in Calculating Meals Consumed in Dietary Studies. 



One meal of woman equivalent to 0.8 meal of man at moderate 

 muscular labor. 



One meal of boy 14 to 16 years of age, inclusive, equivalent to 

 0.8 meal of man. 



One meal of girl 14 to 10 years of age, inclusive, equivalent to 0.7 

 meal of man. 



One meal of child 10 to 13 years of age, inclusive, equivalent to 0.6 

 meal of man. 



