Eggs must be counted among the expensive foods, to be used very sparingly indeed in the economical diet.

Nevertheless the use of eggs as a means of saving meat is a rational food conservation movement, to be encouraged where means permit.
The saving of sugar, while a necessary conservation measure, is contrary to general food economy, since sugar is a comparatively cheap fuel food and has the great additional value of popularity.

Sugar substitutes are not all as cheap as sugar by any means, but molasses, on account of its large amount of mineral salts, especially of calcium, has a score value of 2,315 as against 725 for granulated sugar, and may be regarded with favor by those both economically and patriotically inclined.
In the case of fats, practical economy consists in paying for fuel value and not for flavor.

The score values for butter, lard, olive oil, and cottonseed oil are about the same.

The cheapest fat is the one whose face value per pound (or market cost) is the lowest.