To make the methods of determining food value more graphic and more easily ascertained in everyday life, tables have been prepared stating the weight of various foods required to furnish "100 calories," also stating their approximate bulk; these are called "standard" or "100 calorie" portions.

Examples : - Small glass of whole milk furnishes 100 calories. 1 large egg furnishes 100 calories. 1 ordinary pat of butter furnishes 100 calories.

This method makes it possible to determine roughly the amount of heat and other forms of energy furnished in the daily diet.

Note

Student weigh out 100 calorie portions of various foods to train the eye to estimate quickly the approximate values of foods. (See table of 100 calorie portions.)

How To Find "100 Calorie Portions" From Percentage Composition Table (H. C. Sherman)

The number of ounces in a pound (16 oz.) is to the number of calories in any given food as x is to 100 (calorie portion).

Example : - (Milk 325 calories to 1 pound) 16 (oz.):325::x: 100 = 4.9 Hence 4.9 oz. of milk will yield upon oxidation 100 calories.

Note

Students compute 100 calorie portions of various foods from "Percentage Composition of Food," comparing results with table of "100 Calorie Portions." Compute dietaries of amount of food required by persons of various ages and occupations, by 100 Calorie Portion Method, estimating cost. Cook and serve a dinner or luncheon, serving the food in 100 calorie portions.

Dietary for Man doing Light Muscular Work

Total calorie requirement.....3000 to 3500 calories.

Protein requirement, 12% total calories 360 to 420 calories.