7 2 



SCIENCE OF HOME AND COMMUNITY 



U.S. Department of Agriculture 



Office of Experiment Stations 



A.C. True: Director 



Prepared by 



C.F. LANGWORTHY 



Expert in Charge of Nutrition Investigations 



COMPOSITION OF FOOD MATERIALS. 



Protein 



COD 



Lean Fish 



Fat Carbohydrates Ash 



Water 



FUEL VALUE: 



.Water: 82. 6 IT 



Fuel Value 

 KoSq. In. Equals 

 1000 Calories 



SALT COD 



FUEL VALUE- 



Water 53. 5 



325 CALORIES 



PER POUND 



15.8 



OYSTER 



410 CALORIES 

 PER POUND 



Protein 21.5 

 Fat:0.3 



Ash:24J 



Water:86. 



Carbohydrates: 3. 

 SMOKED HERRING 



ater:34.6 

 Protein:36.4 



FUEL VALUE: 



1355 CALORIES 



PER POUND 



MACKEREL 



Fat Fish 



645 CALORIES 



r . PER POUND 



FIG. 27. Composition of fish. 



