human nutrition, basic food groups, eating healthy, home economics department
Agricultural Extension Service, South Dakota State College of Agriculture and Mechanic Arts
All parts of the body, muscles, bones, nerves, blood, etc., must be supplied with material from which they can grow or make repairs. The bodies need for building and repair material is like that of an automobile. Materials are needed to build it in the first place, and after that there will be need of constant repairs. No good machine can be made without the right material, nor can it last long without repairs.
This item is in the public domain.
Dolve, M., "The Three Food Needs" (1922). SDSU Extension Circulars. 48.