FOOTNOTES:
[9] C. F. Langworthy, Ph.D.—In charge of Nutritive Investigations of the United States Experiment Station.
CHAPTER VIII
FOOD REQUIREMENTS OF THE SYSTEM
As previously stated, the object of foods is:
To supply the needs of the body in building new tissue as in the growing child.
To repair tissue which the catabolic activity of the body is constantly tearing down and eliminating; and
To supply heat and energy.
The heat and energy are not alone for muscular activity in exercise or movement. It must be kept in mind also that the body is a busy workshop, or chemical laboratory, and heat and energy are needed in the constant metabolism of tearing down and rebuilding tissue and in the work of digestion and elimination.
In this chapter, a few points given in the preceding pages are repeated for emphasis.
The proteins represented in purest form in lean meat build tissue, and the carbonaceous foods, starches, sugars, and fats, supply the heat and energy.