Necessary Knowledge to
Careful Planning
To thousands of home-keepers the requirements are new: a correct knowledge of proteids, of carbohydrates, of calories is unfamiliar to them. They cannot grasp what is asked of them, in a day or a week or a month. Suddenly has housekeeping been transformed from a daily round to a science and a business.... It all calls for intelligent study and the most careful planning. It is not a small "bit," it is a full-sized job: never has the American woman faced a bigger job. As she does it or fails of doing it, will this great country win or lose the war.—Ladies' Home Journal.
VITAMINES and CALORIES
by
D. D. COMSTOCK, M.D.
for years Medical Superintendent of Glendale
Sanitarium, Glendale, California
The body is a machine, intricate, complicated, "fearfully and wonderfully" constructed. In one way, it is simple in its operations; but in another, so ultrascientific in the detail of its automatic control, and so deep in the mysteries of its chemical processes, that the investigation of ages has not been able to fathom its greater scientific depths, and bring to the surface a knowledge of its ultimate structure and its wonderful workings. The Master Designer of the living machine so adjusted its mechanism that in its original environment and relationship, its care would be easy, and the laws of its preservation few and exceedingly simple.
Like most machines, the human machine requires the impartation of energy. Similarly, also, this is supplied by the combustion of certain carbonaceous substances. It needs constant repair. These and its other needs are all furnished in the daily food supply.