EXERCISE 86 

 WHAT ARE THE VALUES OF DIFFERENT KINDS OF FOODS? 



Materials. The data presented on page 243 of the " Elements of General Science." 



Directions. It is commonly supposed that an average man needs for his daily food .supply 

 approximately the following amounts of the different kinds of food: 



Protein 4 ounces 



Fats 2 ounces 



Carbohydrates 17 ounces 



With these amounts as the basis of calculations, solve the following problems, referring when 

 necessary to the table on page 243 of the textbook : 



a. If one should eat potatoes only, how much would he need to consume in a day in order to 

 secure enough protein to meet his day's requirement ? 



b. How much milk would be necessary to supply the needed protein if it were used exclusively 

 as the day's food? 



c. Determine the same point, assuming that bread is the sole source of food. 



d. How much rice would be required for a day's protein food if nothing else were eaten ? 



e. Which of the foods are the best-balanced with respect to the amounts of the three materials ? 



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