Nutrition

4. substances added to a food to produce a desired effect
9. a unit of heat used to measure the energy your body uses and the energy it receives from food
11. starches and sugars found in food
13. nutrient the body uses to build and maintain its cells and tissues
14. assist in the regulation of many body processes and are classified as major or trace
16. small chemicals (usually proteins) that act on other chemicals to speed up body processes, but are not apparently changed during those processes
17. provides enough of the energy, nutrients, and fiber to maintain a person's health
19. a tough complex carbohydrate that the body cannot digest
20. a waxy, fat-like substance found in your blood
21. the process by which foods are broken down into their component molecules, either mechanically or chemically

1. the process by which your body takes in and uses food; the science that studies food and how food nourishes our body and influences our health
2. a high ratio of nutrients to calories
3. a condition in which the body's immune system reacts to substances in some foods
5. the extra amount of energy you can consume after you've met all of your essential needs by eating nutrient-dense foods
6. compounds found in food that help regulate many body processes
7. the psychological desire for food
8. a negative reaction to food that doesn't involve the immune system
10. substances in food that your body needs to grow, to repair itself, and to supply you with energy
12. contains the combinations of foods that provide the proper proportions of nutrients
15. provides the proper combination of energy and nutrients
18. the natural physical drive to eat, prompted by the body's need for food
19. an important energy source for our body at rest and during low-intensity exercise