Chapter 28

1. If we call the body an engine, what is the fuel? what is the smoke? what are the ashes? 2. Why and how far can we rely upon our natural desires and appetites for food? 3. How should we choose our foods? 4. Name two serious faults that foods may have. 5. Why do we need a variety of foods? 6. What is meant by the term "fuel value of food"? 7. How can we roughly tell to which class a food belongs or what its fuel value is? 8. Why should animal and vegetable foods be used together?