Copyright Goodheart-Willcox Co., Inc. 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 t know about nutrition. If you cannot answer a question, pay extra attention to that topic as you study this chapter. p 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 8½ 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 I It Depends. Choose It Depends if a statement e 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 ac t e It t Depends d statement is true and when it is false. f r Assess