Lesson 1: Carbohydrates, Fats, Proteins FOOD AND NUTRITION CHAPTER 8

LESSON OBJECTIVES Name the three classes of nutrients that supply your body with energy Explain how the body obtains energy from foods Describe the roles that carbohydrates, fats, and proteins play in your body

NATIONAL HEALTH STANDARDS Predict how healthy behaviors can affect health status Evaluate how the school and community can affect personal health practice and behaviors Assess personal health practices and overall health status Demonstrate a variety of healthy practices and behaviors that will maintain or improve the health of self and others.

QUESTIONS OF THE DAY 1. What is the most healthy meal you’ve ever eaten? 2. What is the most unhealthy meal you’ve ever eaten?

Nutrients:Substances the body needs to regulate bodily functions, promote growth, repair body tissues, and obtain energy. Nutrition:The science of taking in and using nutrients. You need over 40 different nutrients daily

6 Classes of Nutrients 1. Carbohydrates 2. Fats 3. Proteins 4. Vitamins 5. Minerals 6. Water Energy from: Carbohydrates, Fats, Proteins

Metabolism:The chemical process by which your body breaks down food to release energy. Calories:Units used to measure the amount of energy that food contains.

Carbohydrates:Main supply of energy for your body. Simple Carbohydrates:Sugars naturally from fruit, vegetables, and milk. 1 Step Process to energy Complex Carbohydrates:Starches found in plant foods (potatoes and grains). 2 Step Process to energy

Fiber:A complex carb that can’t be broken down. Helps with digestion.

Fats:Supply your body with energy, form your cells, maintain body temperature, and protect your nerves. Saturated Fat:Solid at room temperature. Comes from animal sources. Unsaturated Fat:Liquid at room temperature. Comes from plant sources.

Cholesterol:A waxy, fatlike substance found only in animal products. Trans fat:Manufactured fat. Adding hydrogen to vegetable oils. Worse than saturated fats. Protein:Major function is growing and repairing body tissues. Amino Acids:Chains linked together that form protein.