356 



FOOD AND NUTRITION 



method of calculating is as follows: Since bread contains 9.2 

 per cent, protein, 1 Ib. of bread will furnish 1 X 0.092 = 0.092 

 Ib. of protein. In like manner the bread will yield 1 X 0.013 = 

 0.013 Ib. of fat; and 1 X 0.531 = 0.531 Ib. of carbohydrate. 

 For the round steak the calculation is as follows: 0.5 X 0.197 = 

 0.099 Ib. of protein; 0.5 X 0.135 = 0.067 Ib. of fat. The steak 

 contains no carbohydrate. The other articles on the menu are 

 calculated in a similar manner, using the amount of the article 

 in the menu and the percentage composition of the article as 

 given in Table XIV. The student should make these calcula- 

 tions and verify the figures given in the following table. 

 Calculate the greater calories for each article of food. 



TABLE XV. FOOD FOR ONE DAY FOR A MAN ENGAGED IN MODER- 

 ATELY ACTIVE MUSCULAR LABOR 



The 0.270 Ib. of protein are equivalent to 4.32 oz. of protein 

 (0.270 X 16 = 4.32). It will thus be seen that the above 

 menu furnishes enough calorific value and protein for a man 

 engaged in moderately active muscular work (see Arts. 389 

 and 390). 



396. The Results of Eating too Much. Many people con- 

 sume more food than the body needs. No good can come from 

 such a practice. The food in excess of 3500 or 4000 Cal. per 

 day is not only unnecessary, but more than this, it interferes 

 with the proper working of the body. The organs of excretion 



