I CAN… Name all the three classes of nutrients that supply my body with energy Compare and contrast the roles of carbohydrates, fats, and proteins within my body Explain how my body obtains energy from food Classify foods according to the nutrient source they provide. DID YOU KNOW???? The food you eat becomes ENERGY!! Click Here for Video Clip The chemical process in which your body breaks down food to release energy is METABOLISM SO WHAT’S THE DEAL WITH CALORIES? DON’T LET CALORIES CONFUSE YOU!!! Calories are needed for everything: Work, Play, and even Sleep!!!!!! WHERE DO CALORIES COME FROM???? CALORIES COME FROM…. Carbohydrates Proteins Fats CARBOHYDRATES TWO TYPES OF CARBOHYDRATES Main source of fuel for the body One Gram of Carbs = 4 Calories Complex Carbohydrates provide fiber which essential for keep the digestive system healthy PROTEINS There are types for of Proteins One Gram of Protein Proteins are two important provides Calories Proteins made of Amino whichFour are the repairing are muscle in up tissue. TheyAcids building of tissue Your complete also helpblocks promote growthgrowth. of proteins come from mostly animal sources (meat, bones, skin, and cartilage poultry, & dairy products. Incomplete proteins do not contain all of the bodies essential amino acids and generally come from plant sources. What types of diets might individuals have to worry about getting all of their essential amino acids? FATS Saturated Fats Unsaturated Fats Fats in foods provide flavor, gives us a In our bodies fat keeps sense of fullness, and us insulated, provides a • Usually liquid or soft at • Usually solid at room most importantly energy reserve, and room temperature temperature help our bodies helps protect our internal transport vitamins in organs the bloodstream • Linked with obesity, • Offer protection from heart heart disease, and disease high cholesterol One gram of Fat is equal to Nine Calories MORE INFORMATION FROM THE CDC IN CLOSING…. • Carbohydrates, Fats, and Proteins provide calories in food. • A process called metabolism creates energy by breaking down food. • There are a variety of food sources that provide carbohydrates, fats, and proteins. (Examples) • What is the main role of carbohydrates in your body? Fats? Proteins?