Difference between water soluble and fat soluble vitamins
BIOCHEMISTRY 3(2+1)
Lesson 29 : The Role of Vitamins & Minerals in Metabolism
Difference between water soluble and fat soluble vitamins
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The table summarizes the differences between the water-soluble and fat-soluble vitamins.
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Water-Soluble Vitamins: B Vitamins and Vitamin C
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Fat-Soluble Vitamins: Vitamins A, D, E, and K
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Absorption
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Directly into the blood
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First into the lymph, then the blood
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Transport
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Travel freely
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Many require protein carriers
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Storage
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Circulate freely in water-filled parts of the body
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Stored in the cells associated with fat
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Excretion
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Kidneys detect and remove excess in urine
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Less readily excreted; tend to remain in fat-storage sites
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Toxicity
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Possible to reach toxic levels when consumed from supplements
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Likely to reach toxic levels when consumed from supplements
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Requirements
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Needed in frequent doses (perhaps 1 to 3 days)
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Needed in periodic doses (perhaps weeks or even months)
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Last modified: Tuesday, 24 January 2012, 11:14 AM