HE325 Nutrition
PROTEIN
PROTEIN
- Proteins- contain the form of nitrogen most easily used in the body. Aside from water, proteins form the major part of lean body tissue, totaling 17% of our body weight.
PROTEIN
- Role of Protein-
- 1. Vital for rebuilding and repair in body.
- Our bodies are in a constant state of breakdown, rebuilding and repair.
- Every cell contains protein.
PROTEIN
- 2. Maintaining fluid balance.
- 3. Contribute to acid-base balance.
PROTEIN
- 4. Forming hormones and enzymes.
- 5. Contributing to immune function.
PROTEIN
- 6. Forming glucose.
- Ex: skip breakfast; the body converts amino acids into glucose.
- 7. Providing energy.
- Ex: during prolonged exercise.
AMINO ACIDS
AMINO ACIDS
- Building blocks for protein
AMINO ACIDS
- Essential
- cannot be synthesized by the body; must get from diet, food we eat. There are nine.
AMINO ACIDS
- Non-essential
- can be synthesized by the body. There are eleven
TYPES OF PROTEIN
TYPES OF PROTEIN
- Complete Proteins- also called high-quality proteins
- Contain all the amino acids we need in sufficient amounts
- Animal Proteins
- Soy
TYPES OF PROTEIN
- Incomplete Proteins- also called lower-quality proteins
- Are low or lack one or more essential amino acids
- Individual proteins
TYPES OF PROTEIN
- Complementary Proteins-
- Two food protein sources that make up for each others inadequate supply of specific essential amino acids. Together they supply all nine.
- There are three groups of complimentary foods to combine to create a complete protein.
COMPLEMENTARY PROTEIN CATEGORIES
COMPLEMENTARY PROTEIN CATEGORIES
- Legumes
- Garbanzo beans
- Kidney beans
- Lima beans
- Navy beans
- Black eyed peas
- Peanuts
COMPLEMENTARY PROTEIN CATEGORIES
- Grains
- Brown, wild or white rice
- Whole wheat, rye, or white bread
- Pasta
- Bulgur
- Buckwheat
- Barley
- Crackers
COMPLEMENTARY PROTEIN CATEGORIES
- Seeds and Nuts
- Sesame seeds
- Sunflower seeds
- Pumpkin seeds
- Cashews
- Walnuts
- Hazelnuts