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| | Types of Food -- Protein, Carbohydrates, Fats, Alcohol (Site not responding. Last check: 2007-10-12) |
 | | Protein is essential to the structure and function of all living cells and viruses. |
 | | Other proteins play structural or mechanical roles, such as those that form the struts and joints of the "cytoskeleton." Proteins are also nutrient sources for organisms that do not produce their own energy from sunlight. |
 | | Protein deficiency can lead to symptoms such as fatigue, insulin resistance, hair loss, loss of hair pigment (hair that should be fl becomes reddish), loss of muscle mass (proteins repair muscle tissue), low body temperature, and hormonal irregularities. |
| www.worldofmolecules.com /foods (1115 words) |
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