A moderately active man needs some 3,000 calories per day whether his activity be playing golf or working on a farm; whether his board bill be $3.00 a day or $3.00 a week.

In both cases there must be suitable kinds and amounts of protein-bearing food, of other "building materials," and those substances which directly or indirectly affect the smooth running of the body machinery; nevertheless, these two diets, closely alike in nutritive value, may be very dissimilar in their superficial appearance.

For instance, all the nutritive requirements may be met in a ration composed of three food materials, as milk, whole wheat bread, and apples; on the other hand, by one composed of canvas-back duck, truffles, lettuce, celery, cranberries, white bread and butter, cream, coffee, and perhaps a dozen other items.

We love all the various sensations that come from the mingling in a meal of food hot and cold, moist and dry, crisp and soft, sweet and sour, exhibiting the artistic touch as well as the homelier virtues; it is the sacrifice of pleasure of the esthetic sort that food economy and to some extent food conservation entail.
The first step in food economy (aside from saving of waste) is to emphasize the use of cereal foods.

As much as one-fourth the food money may be invested in grain products without nutritive disadvantage.