Vitamin B7

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Categories: Vitamin

Type: Compound
Vitamin: B7
Name: Biotin
RDA:Not established; probably about 0.3 mg (because biotin content of feces and urine is greater than dietary intake, it is assumed that formation of the vitamin by enteric bacteria provides far more than is needed).
Importance- to Body:
Functions as coenzyme for a number of enzymes that catalyze carboxylation, decarboxylation, deamination reactions; essential for reactions of Krebs cycle, for formation of purines and nonessential amino acids.
Distribution- in Body:
Some is synthesized by bacteria in gastrointestinal tract. In tissues, is usually combined with protein; stored in minute amounts, particularly in liver, kidneys, brain, adrenal glands. Urea derivative containing sulfur; crystalline in its free form; stable to heat, light, acids
Excess Effects:
None listed
Deficiency Effects:
Scaly skin, Muscular Pains, Pallor, Anorexia, Nausea, Fatigue; Elevated Blood Cholesterol Levels
Food Sources:
Liver, Egg Yolk, Legumes, Nuts
Environmental/Geographic Sources:
None listed
Supplemental information:

Synonyms:
Biotin
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