EIGHTEENTH ANNUAL YEAR BOOK — PART V 



2S'i 



U.S. Department of Agriculture 



States Relations Service 



A C True: Director 



Prepared by 



CFLANGWORTHY 



Chief. Office of Home Economics 



COMPOSITION OF FOOD MATERIALS. 



Fat 



Carbohydrates Ash 



Water 



Fuel Value 

 1. 5q. In. Equals 

 1000 Calories 



WHOLE MILK 



SKIM MILK 



-Water: 87.0 



^ater:90.5 



Fat-.^.CU-,^^^^— FVotein.- 3.3 Fat:0.1^_. J_R-otein:3A 



Carbohydrates: J.U Carbohydrates-.5.1 



C D 



Fuel VAUJE:315 calqrieis per pound Fuel value:! 6 5 calories per pound 



BUTTERMILK. 



CREAM 



Fat:0.5. 

 Ash:0. 



ater:91.0 



FVotein:3.0 Fat:l8. 



Carboh5clrates:4.8 ^^^'•^- 



Fuel value:160 calories per pound 



Water: 74-.0 

 •— FV-otein: 2.5 



Carbohydrates: ^.5 



■ 



Fuel value:881 calories per pound 



It wi:l le . edii from the above chart that while whole milk possesses an 

 average fuel value of 31C calories per pound, skim milk has a value of 165 

 calories, or nrrrcximately one-half the value of whole milk. This results 

 from the removal of the fat which Las a fuel value of 4,080 calories per 

 pound. 



