NORMAL MILK AND ITS PRODUCTS AS FOOD 



17 



The following meal of bread and milk furnishes nearly 

 one third the nutrients required by a man per day.^ 



Esti- 

 mated 

 cost. 



(f Lb.) 10 oz. of 

 wheat bread. 



(i Lb.) I pt. of 

 skim milk. . . 



Total 



Cents. 



A woman and a boy between 14 and 16 years of age 

 require about 0.8 the food of a man. 



A girl 14 to 16 years old requires about 0.7 the food of 

 a man. 



A child 10 to 13 years old requires about 0.6 the food 

 of a man. 



A child 6 to 9 years old requires about 0.5 the food of 

 a man. 



A child 3 to 5 years old requires about 0.4 the food of 

 a man. 



A child under 2 years old requires about 0.3 the food of 

 a man. 



Buttermilk. — Buttermilk is an important dairy by- 

 product. As most of the butter is made at creameries or 

 at central points the bulk of the buttermilk is produced 

 at central places, where the supply is greater than the de- 

 mand. As a consequence, a large portion of it is not utihzed 

 ■ at all. 



Buttermilk has, practically speaking, the. same food 

 value as skim milk, if during the manufacturing processes 

 the buttermilk has not been adulterated. It contains 

 from 0.4 to 0.8 per cent lactic acid, according to age and 

 degree of ripening of the cream. This acid is produced 

 1 U. S. Dept. of Agr., Farmers' Bui. No. 74. 



