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Quiz 5 - 4 Characteristics of a...

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4 Characteristics of a vitamin:carbon-containing ,needed in small amounts,essential, deficiency can be cured Absorption Fat:soluble vitamins requires: bile Anything interfering with fat absorption will impair :fat soluble absorption Absorption Water-soluble vitamins: in small intestine Water-soluble vitamins Transported to liver via: portal vein & distributed to body tissues Fat-soluble Vitamin Toxicity because they are not readily: excreted from the body (except for vitamin K) most frequently observed Vitamin Toxicity by :vitamin A Water-soluble Toxicity doesn’t occur because excess is:Excess excreted in urine Water-soluble Toxicity Exception: B6 & B12 stored in liver Vitamins levels in Animal Foods is:constant Vitamins levels in Plant Foods is dependent on 5 factors:soil composition, sunlight, moisture, growing conditions, maturity at harvest Vitamins Enrichment: replacing lost nutrients Vitamins Fortification: adding extra nutrients
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