Page:The Boston cooking-school cook book.djvu/704

612 How to Determine the Number of Calories Required Daily by an Individual Using the Above Table Woman. Age 35. Weight 125 Sleeping 8 hours Slight exercise : At meals, sewing, reading, etc. 8 hours At light exercise : Standing and walking 6 hours At active muscular exercise: General housework 2 hours 8 X .4 calorie = 3.2 calories 8 X .6 calorie = 4.8 calories 6X lecalorie =6_ ecalories 2X 2calories = 4 calories 18 calories required per pound of body weight 125 X 18 calories = 2250 calories for day’s requirement.

Other calculations show that the needs of a person esti- mated ir calories vary from twenty-two to thirty-five hun- dred for one day. Of this amount from ten to fifteen per cent (220 to 425 calories) should come from protein foods and .015 iron gram should be furnished.

It is not necessary to consider the amount of calcium (of which .7 gram is the daily requirement) if one pint of milk is supphed for each person. An adequate milk supply will furnish also one-third the amount of phosphorus required, making this calculation practically unnecessary.

Foods rich in fats have the highest caloric value, while foods rich in protein, sugar, and starch have greater caloric value than those containing much water.

The following table will enable one to calculate quickly the number of calories, protein calories, and grams of iron supplied by the more common foods. The figures for the most part are given in hundreds and even numbers to facili- tate this calculation. They therefore vary slightly from those found in Bulletin 28, Department of Agriculture, but