sport books publisher1 vitamins serve as coenzymes in chemical reactions ‘organic’ because they...
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Sport Books Publisher 1
Vitamins Serve as coenzymes in
chemical reactions
‘Organic’ because they contain carbon atoms
Required in small amounts
Necessary for1. Growth2. Reproduction3. Health Maintenance
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Sport Books Publisher 2
Vitamins
Two classifications,
1. Water-soluble vitamins; and
2. Fat-soluble vitamins
Based on the ability to dissolve in either water or fat tissue, respectively
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Sport Books Publisher 3
Water-soluble Vitamins Not stored
Excess eliminated in the urine
Include vitamin C and B-complex vitamins
Dissolve quickly in water, so overcooking fruits and vegetables in water will result in the vitamins being lost to the water
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Sport Books Publisher 4
Fat-soluble Vitamins Includes vitamins A, D, E, K
When taken in excess, these vitamins are stored in fat tissue
Over-consumption of these vitamins (especially A and D) can result in toxicity
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Sport Books Publisher 5
Antioxidants Formed from vitamins
Aid in preserving healthy cells
When the body breaks down fats, or uses oxygen, free radicals are formed
Free radicals can damage cell membranes and mutate genes
Antioxidants react with free radicals to decrease their negative effects
Include vitamins E, C, beta carotene (from vitamin A)
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Sport Books Publisher 6
Minerals Numerous functions in the body
‘Inorganic’ because they do not contain carbon atoms
Necessary for1. Structural elements (teeth, hormones,
muscles)2. Regulation of body functions (muscle
contractions, blood clotting, heart function)
3. Aid in the growth and maintenance of body tissues
4. Catalytic action in energy release
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Sport Books Publisher 7
Minerals
major minerals are found in relatively large amounts in the body
• Calcium• Phosphorus• Magnesium• Sulfur• Sodium• Potassium
trace elements are needed in small amounts
• Zinc• Iron• Copper• Fluoride• Iodine• Selenium
Approximately 17-21 identified essential minerals
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Sport Books Publisher 8
Vitamins and Minerals Needed in small amounts
Essential component to good health
Consumption of too little or too much can have detrimental effects
To ensure adequate intake, eat a balanced diet with variety