14 DEPARTMENT BULLETIN 975, U. S. DEPT. OP AGRICULTURE. 



Chart 6. One Pound of Lettuce. 



(2 large heads.) 



One pound of lettuce supplies about 70 calories of energy, 5 grams (about 

 i ounce) of protein, 0.16 gram of calcium, 0.15 gram of phosphorus, and 2.7 

 milligrams of iron. It would furnish, therefore, 2 per cent of the energy a 

 man needs daily, 5 per cent of the protein, 25 per cent of the calcium, 12 per 

 cent of the phosphorous, and 18 per cent of the iron. This is shown in the 

 following chart : 



ENERGY 



2lX 



PROTEIN 



m 



CALCIUM 



2Sf)mm 



PHOSFHORUS 



mm 



IRON 



ismm 

 1 '" ■'i" •^1° *p "^t" ^t" 1" ^i" ^i" 



Chart 6. — Proportions of energy, protein, calcium, phosphorus and iron needed per man 

 per day furnished by 1 pound of lettuce. 



Chart 7. One Pound of Cabbage. 



(About J of an average head.) 



One pound of cabbage supplies about 105 calories of energy, 6 grams (about 

 i ounce) of protein, 0.17 gram of calcium, 0.11 gram of phosphorus, and 4 

 milligrams of iron. It would furnish, therefore, 3 per cent of the energy a 

 man needs daily, 6 per cent of the protein, 25 per cent of the calcium, 9 per 

 cent of the phosphorus, and 27 per cent of the iron. This is shown in the 

 following chart : 



ENERGY 



3fk 



FROTEIN 



sm 



CALCIUM 



2fmBm 



FWSFHOm 



9fJm 



IRON 



j To xo 3o 4-0 so 60 70 So Po 

 1 1 1 1 1 1 • . I . • 1 



Chart 7. — Proportions of energy, protein, calcium, phosphorus, and iron needed per man 

 per day furnished by 1 pound of cabbage. 



