FOOD AND DIGESTION 



363 



of time. The following table and fig. 159 indicate the results 

 obtained : 



TRY PS IN 



DIASTASE 



L/PASE 



BREAD MILK FLESH 



60OCCS 



FIG. 160. To show the relative amounts of the three enzymes of the 

 pancreatic juice formed on different diets. 



Bread contains a protein difficult of digestion, plenty of starch, 

 and little fat. Milk contains an easily digested protein, and 

 plenty of fat, but no starch; while flesh contains a com- 

 paratively easily digested protein, no starch, and a moderate 

 amount of fat. The first food causes a copious production of 

 trypsin and diastase, and little lipase. The second causes the 

 production of less trypsin, little diastase, but most lipase. The 



