THE FOODS WE EAT 



A varied diet is important for health because it provides the 



body with (1) foods, (2) foods, and those which are (3) 



and (4) Fats and (5) are our chief sources of energy and 



hence are called (6) foods. (7) build tissues and are 



(8) foods while minerals, (9) , and water may be con- 

 sidered as (10) and (11) Minerals needed by the body 



are found largely in (12) , milk, and (13) (14) The 



six known (15) are called A, B, C, D, E, and G. They are 



found in cereals, (16) vegetables, (17) fruits, certain 



(18) , (19) , and (20) products. Therefore if we are 



to have all of these in our food, we must have a (21) diet. 



(22) is a perfect food because it contains all the nutrients and 



(23) and most of the mineral salts necessary for life. 



STORY TEST 



ELLA FINDS SHE CAN LEARN EVEN WHEN SHE Is SICK 



Read carefully and critically. List all the errors and suggest cor- 

 rections. 



I learned a lot from my nurse when I was getting over the scarlet 

 fever. There are three classes of foods. Protective foods which 

 make you strong, like spinach, which has iron ; growth foods, 

 like corn and potatoes, which grow in our gardens ; and fuel foods, 

 like coal and coke. Heat is just as necessary to run our bodies as 

 to run an engine. The food fuels do not burn with a flame in our 

 bodies but they do unite with oxygen. This happens in the lungs, 

 where we take in air. The best growth foods are those which 

 contain nitrogen. Butter and cheese are good examples of these. 

 There are many different vitamins, but if one drinks lots of milk 

 and tomato juice, he doesn't need to worry about the lack of them. 

 I was surprised to learn that there are more than half a dozen 

 different metals in the body without which we cannot live. 



PROBLEM III. SHOULD EVERYBODY EAT THE 

 SAME KINDS AND AMOUNTS OF FOOD? 



What Makes the Human Machine Go? If you were 

 to answer this question for your automobile, you would 

 say gasoline, as you would say coal or wood or gas 

 makes the steam engine go. From what you have already 

 learned you know certain kinds of foods have fuel values 

 for the human machine. In the locomotive the energy 



