CHEAPNESS OP FOODS 345 



Self-Testing Exercise 



Write the numbers of the correct answers in your workbook. 



A person asleep uses, per pound of body weight per hour, (1) one 

 Calorie ; (2) f Calorie ; (3) 10 Calories ; (4) \ Calorie. 



Acidosis may be avoided by using (5) orange juice; (6) soda mint 

 tablets ; (7) hot water before meals ; (8) red meats in the dietary. 



Roughage (9) helps give the body proteins ; (10) adds Calories to the 

 dietary; (11) aids in regulating bowel movement. 



The protein requirement of the total Calorie requirement of the body 

 is (12) 10 per cent; (13) 25 per cent; (14) 100 per cent; (15) 50 per 

 cent. 



PROBLEM VI. HOW CAN THE RELATIVE CHEAPNESS OF 

 FOODS BE DETERMINED? 



Practical Exercise 3. To find the relation of the value of food to its cost in 

 the family dietary. Make a careful record of all purchases of food in your 

 home for one week. Find out what the average weekly cost is by dividing 

 the total cost by the number in your family. 



Using the tables on pages 336-337 and your daily calorie requirement, 

 make out a cheap, appetizing but well-balanced menu for one person for a 

 period of one week. Multiply the result by the total number in your family. 

 Compare the total cost thus obtained with that worked out from your home 

 dietary. 



Are you living as economically as you might ? What inexpensive substitutes 

 might you introduce in place of meat? 



The relation of cost of food to diet. It is a mistaken notion that 

 the best foods are always the most expensive. A study of the 

 tables on pages 336 and 337 will show us that fuel and tissue- 

 building materials as well as vitamins are present in foods from 

 vegetable sources, as well as in those from animal sources ; and 

 the vegetable foods are usually cheaper. The American people 

 are far less economical in their purchase of food than most other 

 nations. A comparison of the daily diets of persons in various 

 occupations in this and other countries shows that as a rule 

 we eat more than is necessary to supply materials for fuel and 

 repair. Another waste of money by Americans is due to the false 

 notion that a large proportion of the daily diet should be meat. 

 Many people think that the most expensive cuts of meat are the 

 most nutritious. The falsity of this idea may be seen by a careful 

 study of the table on page 346. 



