THE HYGIENE OF THE DINING ROOM 



6 7 



U. S. Department of Aoriculture 



Office of Experiment Stations 



A. C. True: Director 



Prepared by 



C. F. LANGWORTHY 



Expert in Charge of Nutrition Investigations 



COMPOSITION OF FOOD MATERIALS. 



rmnn 



Protein 



Fat Carbohydrates 



Ash 



Water 



(Fuel Value 

 JfoSq.ln.Equals 

 1000 Calories 



ONION 



Wat 

 Protel 

 Carbohydrates: 9.9 



FUEL VALUE: 



1 



230 CALORIES 

 PER POUND 



Protein:1.6 

 Fat:0.5 

 Carbohydrates; 13.5 



sh:1.4 



FUEL VALUE: 



225 CALORIES 

 PER POUND 



PARSNIP 



POTATO 



Protein:2.2 



Carbohydrates: 18.4 ^Water:78.3 



FUEL VALUE: Protein 



Carbohydrates: 3. 



Ashfl.O 



I 



385 CALORIES PER POUND 



FIG. 25. Composition of vegetables. 



