Our bodies are made of protein. All parts of the body depend in some way on protein for survival. In fact, the word protein was coined by a Dutch chemist in 1839 and means "of first importance". Here's an example of protein's importance in our bodies:
- 98% of hair and skin are protein
- Heart, kidneys and eyes are composed of protein
- Enzymes are made up of protein
- Hormones and genes are protein
- Antibodies, which are the protection against diseases and infections, are proteins
Major Functions:
- Builds muscle tissues
- Maintains fluid balance
- Functions as an energy nutrient
- Provides amino acids needed for body's growth and maintenance
Protein Deficiency Can Cause:
- Kidney desease
- Lack of resistance to infection
- Irritability
- Fatigue
- Poor wound healing
- Low blood pressure
- Nerve instability
- Weakness,
- High cholesterol levels
- Poor circulation
- Weak vision
You need a daily supply of protein to maintain your level of efficiency. Protein can not be stored in your body for a long time. When the supply of protein is depleted, the body is then forced to feed upon itself, which cause tissue and muscle to breakdown.
Sources of Protein
| Name | Amount | Grams of Protein |
|---|---|---|
| Halibut | 3 ounces | 22.7 |
| Salmon | 3 ounces | 21.6 |
| Shrimp | 3 ounces | 17.3 |
| Cottage Cheese | 1/2 cup | 20 |
| American or Swiss Cheese | 2 slices | 10-12 |
| Yogurt, lowfat | 1 cup | 11.9 |
| Tofu | 1/2 cup | 11 |
| Milk, any | 1 cup | 8 |
| Egg | 1 medium | 6 |
References:
- Clark, Linda A. Know Your Nutrition. Connecticut: Keats Publishing, Inc. 1973.
- Editors of Prevention Magazine. The Complete Book of Vitamins and Minerals. Pennsylvania: Rodale Press, 1988.
- Health Media of America and Elizabeth Sommer. The Essential Guide to Vitamins and Minerals. New York: HarperPerennial, 1992.