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Chapter 3 Nutrition 67
Setting the Scene
What have you eaten today? Did you eat a nutritious breakfast such as
whole-grain cereal with milk? Or did you grab a piece of toast as you raced
out the door? Or did you skip breakfast completely?
Now think about what you ate for lunch. Did you choose a well-
balanced meal from the school cafeteria, or did you eat a sandwich and
yogurt that you brought from home? Did you skip lunch, planning to grab
fast food after school?
Although you may not have thought much about the food choices
you’ve made today, what you eat has a major impact on your overall
health. This chapter examines nutrition, the processes by which an
organism—you—takes in and uses food. You’ll learn about differ-
ent types of nutrients your body needs, how nutrients help your
body stay healthy, and strategies for making healthful and safe
food choices.
What’s Your Health and Wellness IQ?
Take this quiz to see what you do and do not know
about nutrition. If you cannot answer a question, pay
extra attention to that topic as you study this chapter.
Health and Wellness IQ
1. Fiber is a good source of energy. True False It Depends
2. Essential amino acids are produced by your body. True False It Depends
3. Unsaturated fats are better for your health than saturated fats. True False It Depends
4. Drinking to 11½ glasses of fl uids a day is a good strategy for
maintaining good health.
True False It Depends
5. Taking regular supplements of vitamins and minerals is a good strategy for
improving your overall health.
True False It Depends
6. Fruit juices and whole fruits provide approximately the same level of
nutrients to your body.
True False It Depends
7. Eating a candy bar or drinking a sugary soda is a healthful strategy for
boosting your energy level.
True False It Depends
8. Keeping cold foods cold and hot foods hot is a good strategy for prevent-
ing food poisoning.
True False It Depends
9. Proteins, carbohydrates, and fats all have the same number of calories per gram. True False It Depends
10. No cure exists for food allergies. True False It Depends
1. Identify each statement as True, False, or It
Depends. Choose It Depends if a statement is
true in some cases, but false in others.
2. Revise each False statement to make it true.
3. Explain the circumstances in which each It
Depends statement is true and when it is false.
Assess
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