Nc. ti 



DIOPAU I MKNT OK AGKICUl/IUKI':. 



:>4'j 



l)i<!taiv SlMiidaiMls. 

 Dietai'v sliulies liaxc bcfii made in coiisidiMable iiiuiibers iu dif- 



I.' 



fi^rent countries. The results of sucli studies and experiments to. 

 deierminf the amount of food reciuired by men engaged in different 

 occupations have resulted in the adoption of dietary standards, 

 t^ome of these follow: 



Standards for Daily Dietaries. 



Character or Work to be Performed. 



o 

 "3 

 o 



3 



European: 



Man at moderate work, 



Man at hard work 



American: 



Man without muscular work,' 



Man witli light muscular work, ... 



Man with moderate muscular work 



Man with hard muscular work, ... 



0.26 

 .32 



.20 



.22 

 .28 

 .39 



0.12 

 .22 



1.10 

 .99 



3.055 

 3.370 



3,000 

 3,0C0 

 3. SCO 

 4,600 



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, 

 fat, and carbohydrates all furnish energy. In addition to furnish 

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

 ess(?ntial 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 a^niount required bj^ 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 com])ared 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 O.S meal of man at moderate 

 muscular labor. 



One meal of boy 14 to Ul y(-ars of age. inclusive, e(iuivalent to 

 O.S meal of man. 



One meal of girl 14 to 10 years of age, inclusive, equivalent to fl.7 

 meal of man. 



One meal of child 10 to 1:5 years of age, inclusive, equivalent to O.fi 

 meal of man. 



