Nutrition: Protein Chapter 5 Lesson 3

Analyzing Protein Objective 1: Identify the role of protein in your body Objective 1: Identify the role of protein in your body Objective 2: Be able to identify where you could obtain the 9 essential amino acids Objective 2: Be able to identify where you could obtain the 9 essential amino acids Objective 3: Give an example of how to make incomplete proteins complete by combining foods Objective 3: Give an example of how to make incomplete proteins complete by combining foods

Review from Lesson 2 What are simple carbohydrates? What are simple carbohydrates? Sugars; glucose, fructose, lactose Sugars; glucose, fructose, lactose Examples? Examples? Fruits, Milk, Cake, Candy, Pop Fruits, Milk, Cake, Candy, Pop What are complex carbohydrates? What are complex carbohydrates? Starches Starches Examples? Examples? Whole grains, seeds, nuts, legumes, tubers Whole grains, seeds, nuts, legumes, tubers The body must break down__________ carbohydrates into ___________carbohydrates before it can use them for energy. The body must break down__________ carbohydrates into ___________carbohydrates before it can use them for energy. Complex/simple Complex/simple

Protein, What is it? How does it work? Protein Protein Nutrients that help build and maintain body cells and tissues Nutrients that help build and maintain body cells and tissues Made up of chains called, Amino Acids Made up of chains called, Amino Acids Your body can manufacture all but 9 of the 20 different amino acids that make up proteins. Your body can manufacture all but 9 of the 20 different amino acids that make up proteins. These 9 amino acids are known as Essential Amino Acids These 9 amino acids are known as Essential Amino Acids So where do we get them? So where do we get them?

Complete Proteins Complete Proteins Complete Proteins Contain adequate amounts of all nine essential amino acids. Contain adequate amounts of all nine essential amino acids. Found in animal products Found in animal products Fish Fish Meat Meat Poultry Poultry Eggs Eggs Dairy Products; milk, cheese, yogurt Dairy Products; milk, cheese, yogurt

Controversial Topics What other mammal (besides humans) needs to drink milk from a cow (other than a baby calf)? What other mammal (besides humans) needs to drink milk from a cow (other than a baby calf)? Is rHBT (growth hormone) safe? Is rHBT (growth hormone) safe? s/display.cfm?ID= s/display.cfm?ID= s/display.cfm?ID= s/display.cfm?ID= Should animals be regularly fed antibiotics? Should animals be regularly fed antibiotics? How can this have an affect on us? How can this have an affect on us?

Videos “Pink Slime” Cows Fed Candy Superbug found in Chicken Antibiotic Risks to Humans Genetically Modified Salmon

Vegetarians Do not eat meat Do not eat meat There is a difference between vegetarians and vegans. What is it? There is a difference between vegetarians and vegans. What is it? May have a challenge getting protein, so how do they? May have a challenge getting protein, so how do they? Eggs, Milk, Cheese, Yogurt Eggs, Milk, Cheese, Yogurt Beans, legumes, grains, nuts, seeds Beans, legumes, grains, nuts, seeds Combining foods carefully is the key Combining foods carefully is the key Ex: Legumes + Grains Ex: Legumes + Grains Ex: Nuts + Seeds Ex: Nuts + Seeds

Incomplete Proteins Incomplete Proteins Incomplete Proteins Lack one or more of the essential amino acids Lack one or more of the essential amino acids Sources Sources Beans, peas, nuts, and whole grains Beans, peas, nuts, and whole grains If you were to combine peanut butter and bread, that would give you a complete protein If you were to combine peanut butter and bread, that would give you a complete protein You don’t have to combine the incomplete proteins in one meal, you just need to eat them over the course of the day! You don’t have to combine the incomplete proteins in one meal, you just need to eat them over the course of the day!

Role of Proteins Proteins have many functions including; Proteins have many functions including; During major growth periods such as; adolescence, puberty, & pregnancy, the body builds new cells and tissues from the amino acids in proteins. During major growth periods such as; adolescence, puberty, & pregnancy, the body builds new cells and tissues from the amino acids in proteins. Throughout your life your body replaces damaged or worn-out cells by making new ones from protein. Throughout your life your body replaces damaged or worn-out cells by making new ones from protein.

Role of Proteins Your body also produces enzymes, hormones and antibodies from proteins. Your body also produces enzymes, hormones and antibodies from proteins. Proteins help supply your body with energy, even though they are not the main source. Proteins help supply your body with energy, even though they are not the main source. Proteins, like carbs, provide 4 calories per every 1 gram. Proteins, like carbs, provide 4 calories per every 1 gram. Excess protein is converted to body fat Excess protein is converted to body fat