Nutrition:
Protein
Chapter 10
Lesson 2
Page 260
Analyzing Protein
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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 3: Give an example of how to make
incomplete proteins complete by combining foods.
Objective 4: Analyze and evaluate if the use of
rBHT (growth hormone) and/or use of antibiotics
should be used in our animals (food supply)
The Role of Proteins
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Protein: Nutrients the body uses to build and
maintain its cells and tissues.
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10-15% of your daily calories should come from protein.
Muscles, bones, skin, and internal organs are all
constructed of protein.
Protein helps your body grow during childhood and
adolescence.
The protein hemoglobin in your red blood cells carry
oxygen.
Protein does not supply energy as quickly as
carbohydrates do, but can be used as an energy source.
(see pg. 260 for how much protein you need)
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Amino Acids
Protein is made up of chains called, Amino
Acids
 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 you have to get from foods.
So where do we get them?
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Complete Proteins
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Complete Proteins
Contain adequate amounts of all nine essential
amino acids.
 Found in animal products
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 Fish
 Meat
 Poultry
 Eggs
 Dairy
Products; milk, cheese, yogurt
 Soy (is a versatile bean) is a good
source of protein for vegetarians or vegans
Incomplete Proteins
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Incomplete Proteins
Lack one or more of the essential amino acids
 Sources
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 Beans,
peas, nuts, and whole grains
 If you were to combine peanut butter and bread,
that would give you a complete protein
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You don’t have to combine the incomplete
proteins in one meal, you just need to eat
them over the course of the day!
Vegetarians
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Do not eat meat
There is a difference between vegetarians and
vegans. What is it?
May have a challenge getting protein, so how do
they?
 Eggs, Milk, Cheese, Yogurt
 Beans, legumes, grains, nuts, seeds
Combining foods carefully is the key
 Ex: Legumes + Grains
 Ex: Nuts + Seeds
Videos
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Pass out worksheet “Should animals be regularly
fed antibiotics”?
Antibiotic Risks to Humans:
http://www.youtube.com/watch?v=CJDymQ7kjNc
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Superbug found in Chicken:
http://www.youtube.com/watch?v=fX-oeYZZsL8
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FDA to regulate antibiotics in meat production
http://abcnews.go.com/Health/video/fda-regulate-antibiotics-meatproduction-21182502