1. Protein!
March 12, 2013

2. Good Morning! 11/19/13 Today we are:
Follow up on poultry lab
Learning about protein
Notes
Protein hunt
Thursday: Quiz on Poultry and Protein
Next week:
Thanksgiving feast?

3. Why is Protein Needed by the Body?
Build and repair body tissue
Maintain cell growth
Especially important when growing
Provide energy if there aren’t enough carbohydrates and fats available

4. Everyday? Yes, everyday! Constantly needed to replace worn out tissues
Needs fresh protein every day
Constantly needed to replace worn out tissues

5. What happens to protein?
Eat too much, converts to fat
Can take the place of carbohydrates and fats
Converts to energy
Can NOT convert back to protein once it becomes energy
Carbohydrates and fats can not take the place of protein

6. Best Sources of Protein
Milk
Eggs
Cheese
Lean Meat and poultry
Fish

7. Amino Acids Chemical building blocks from which new proteins are made
9 Amino acids essential to human health and nutrition
Food has all 9 = Complete Protein
Support growth and maintenance of body tissues
All animal proteins are complete proteins
Some plant sources are complete
Missing some amino acids = Incomplete Protein
Provide maintenance but not support growth

8. Complete Protein Examples:
Supports growth and maintenance of body tissues
All animal proteins are complete proteins
Some plant sources are complete
Examples:
Red meat, fish, poultry
Some nuts
Milk products
Germ of grains
Soybeans

9. Incomplete Proteins
Plant foods missing some amino acids = Incomplete Protein
Provide maintenance but not support growth
Examples:
Legumes
Dried beans
Grains
Peanuts

10. Variety is the spice of life
Variety ensures you get all the amino acids
Incomplete protein will be excreted by the body if not completed or unused
Complete with another source
Glass of milk
Plants
Extended by combining with plant proteins or carbohydrates

11. So, how much is enough? 2-3 servings per day
Stored as fat and used for energy if there are no carbohydrates or fats
If body isn’t getting enough:
Lack of energy
Stunted growth in children
Lower resistance to disease
Make sure you are getting enough protein each and every day!