Chapter 18 - Nutrition and special diets. After you have mastered the material in this chapter, you will be able to: Describe how the body uses food, explain the role of calories in the diet, identify nutrients and their role in health, recall the Dietary Guidelines for Americans, describe the test used to assess body fat,. | 18 Nutrition and Special Diets 18- Learning Outcomes Describe how the body uses food. Explain the role of calories in the diet. Identify nutrients and their role in health. Recall the Dietary Guidelines for Americans. 18- Learning Outcomes (cont.) Explain how the Food Guide Pyramid can be used to plan a nutritious, well-balanced diet and healthy lifestyle. Describe the test used to assess body fat. Explain reasons why a diet may be modified. Identify types of patients who require special diets and the modifications required for each. 18- Learning Outcomes (cont.) Describe the warning signs, symptoms, and treatment for eating disorders. Educate patients about nutritional requirements. Document patient education about nutrition. 18- Introduction Nutrition How the body takes in and utilizes food and nutrients Five-part process Intake Digestion Absorption Metabolism Elimination Medical assistant – . | 18 Nutrition and Special Diets 18- Learning Outcomes Describe how the body uses food. Explain the role of calories in the diet. Identify nutrients and their role in health. Recall the Dietary Guidelines for Americans. 18- Learning Outcomes (cont.) Explain how the Food Guide Pyramid can be used to plan a nutritious, well-balanced diet and healthy lifestyle. Describe the test used to assess body fat. Explain reasons why a diet may be modified. Identify types of patients who require special diets and the modifications required for each. 18- Learning Outcomes (cont.) Describe the warning signs, symptoms, and treatment for eating disorders. Educate patients about nutritional requirements. Document patient education about nutrition. 18- Introduction Nutrition How the body takes in and utilizes food and nutrients Five-part process Intake Digestion Absorption Metabolism Elimination Medical assistant – understand relationship between nutrition and health 18- Daily Energy Requirements The body requires nutrients To provide energy To build, repair, and maintain body tissues To regulate body processes 18- Metabolism The sum of all cellular processes that build, maintain and supply energy to living tissue Phases Anabolism – nutrients are changed into more complex substances that are used to build body tissues Catabolism – complex substances are broken down into simpler substances and converted to energy Metabolism affected by age, weight, activity, state of health, and other factors 18- Calories Kilocalorie (calorie) Measurement of energy produced by food Amount of energy needed to raise the temperature of 1 kg of water by 1°C. Used to measure the energy expended during activities and metabolic processes Excess calories stored as fat Count calories of food eaten and estimate expenditure for activities 18- Apply Your Knowledge What is the role of diet in .