APPETITE AND DIET 



339 



+heat 

 / 



pop corn 

 xith its . 

 starch, grams 



i drains ^O 



burst potato starch 

 gnain5 



foods out of his diet, for " what is one man's meat may be 

 another man's poison." 



The relation of appetite to diet. Every one likes some things 

 better than others. Through experimentation it has been found 

 that foods which are 



enjoyed cause a flow ^^>r~^ 



of digestive juices, £-7?^ 



not only in the 

 mouth but also in 

 the stomach. The 

 sight, odor, and taste 

 of food we like actu- 

 ally aid in diges- 

 tion. "Digestion 

 waits on appetite." 

 If we use common 

 sense in the selec- 

 tion of foods, and 

 take care to avoid 



foods that We Cannot Explain what happens to starch when it is heated? When 



easily digest, we shall 

 find that the appetite is often a guide in the selection of foods. 

 Acidosis and how to prevent it. The body is a very delicate 

 machine. Its parts must be adjusted to a nicety or trouble results. 

 The blood is normally alkaline. If fat is not completely oxidized 

 in the body, the partly oxidized fat remains in the tissues as a 

 fatty acid. This changes the alkalinity of the blood to acidity 

 and trouble immediately follows. This condition, called acidosis 

 or " kotosis," is often benefited by eating fruits and vegetables 

 and avoiding use of meats and fats. 



V- 



z # <z 



^g*mms enlarge 



stcrrSfe^^X y~- + oaidi break: 

 changes to digestive 

 Soluble sugar Jtfice 



Explain what happens to starch when it is heated? 

 it is digested ? 



Self-Testing Exercise 



A man needs (1) (2) when he does hard physical 



work than when he (3) a (4) life. A (5) 



person needs more food than a (6) one, for he has more 



(7) to feed (8) plays a part in the kind as well as 



the (9) of food needed by the body. What is one man's 



