Just as much attention should be paid to selecting body-regulating foods as to fuel and building foods. Fortunately there is an overlapping of all three of these needs, and a single food often supplies several.

Regulating foods should be selected from each of the following groups: Foods containing laxative substances, as fruits and vegetables, breakfast foods and breads made from the whole grain; foods containing needed salts, acids or flavors, as fruits and vegetables; foods containing two unknown factors, which have been called vitamines and growth-promoting factors, both of which are necessary for health and for growth.