WaterSolubleVitamins-2011

WaterSolubleVitamins-2011 - Water-soluble vitamins: B & C...

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Water-soluble vitamins: February 25, 2011
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What is a vitamin? An organic compound found in individual units Vital to life Available from foods Amount were ingest is measured in small amounts (milligrams or micrograms). Do not yield usable energy when broken down - assist enzymes in energy release We believe in the role of vitamins so much that we spend billions of dollars every year on supplements
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Vitamin Bioavailability The rate and extent to which a vitamin is absorbed and used by the body Depends on a variety of factors including: Previous nutrient intake and nutritional status Other foods consumed at the same time Method of food preparation (raw, cooked, processed) Source of the nutrient (synthetic vs naturally occurring)
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Some vitamins are available in foods in an inactive form - precursors Once inside the body, a precursor is converted into an active form of the vitamin Precursors are also known as provitamins When measuring vitamin intake, it is important to account for both precursors and active forms Carotene Vitamin A
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This note was uploaded on 09/04/2011 for the course 01 189:101 at Rutgers.

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WaterSolubleVitamins-2011 - Water-soluble vitamins: B & C...

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