1. 13 The Digestive System and Nutrition
Lesson 13.1: Nutrition Lesson 13.2: Anatomy and Physiology of the Digestive System Lesson 13.3: Disorders and Diseases of the Digestive System

2. Chapter 13: The Digestive System and Nutrition
Lesson 13.1
Nutrition

3. Nutrition
energy
macronutrients, vitamins, and minerals

4. Energy measuring the body’s energy use basal metabolic rate calories
kilocalories
basal metabolic rate
energy required for one day at rest
varies by individual

5. Macronutrients, Vitamins, and Minerals
substances needed for
energy
growth
maintenance
Tischenko Irina/Shutterstock.com

6. Nutrients
carbohydrates
proteins
fats (lipids)
vitamins
minerals

7. Carbohydrates sugars starches 1 gram supplies 4 Calories
one half of daily caloric intake should be from carbohydrates

8. Proteins made of amino acids essential amino acids
must be part of diet
nonessential amino acids
body can make
one gram supplies 4 Calories
one quarter of daily caloric intake from proteins
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9. Fats lipids saturated fats monounsaturated fats polyunsaturated fats
trans-unsaturated fats (trans fats)
- task: Go to google images and look up the line drawings for saturated, unsaturated, and trans fats. Draw one of each in your notes. Hint:

10. Fats one gram supplies 9 Calories
minimize trans and saturated fat intake
less than 25–35% of total calories from fat

11. Vitamins chemicals needed for proper metabolism types of vitamins
fat-soluble
may be stored in the body
water-soluble (more likely to cause vitamin deficiency)
are not stored in the body
vitamin deficiency- lack of vitamins due to poor diet or genetic inability to store

12. Minerals elements needed for proper body function examples calcium
potassium
iron
phosphorus

13. Water-Soluble Vitamins

14. Fat-Soluble Vitamins

15. Minerals

16. Review and Assessment
Match these words with 1–4 below: carbohydrate, fat, vitamin, iron.
1. 9 calories per gram
2. water soluble
3. sugar
4. mineral