lecture 3-20 sec3p - Lecture 3-20 Water Soluble Vitamins...

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Lecture 3-20 Water Soluble Vitamins B-5 (pantothenic acid) Functions: -part of coenzyme A (CoA) -w/o it no kreb’s cycle -difficult to become deficient or toxic -discovered at UT Biotin (sulfur containing) Function: -fat metabolism cofactor that help transport CO2 -only reported occasionally Vitamin C (ascorbic acid) Daily value RDA 90 mg men; 75 mg women; +35 mg UL 2000 mg 10 mg prevents scurvy 100 mg tissue saturation >400 mg lack of evidence for value in health people Function: -water soluble antioxidant; free radicals can damage proteins -DNA, RNA created during metabolism. -Antioxidants get rid of free radicals (detoxify them) -Formation of collagen component of bone -part of connective tissue -Wound healing Scurvy develops w/in 30 days of deficiency Does not prevent or cures common cold People needing supplementation: with infection, burned victims, drugs (medical) can deplete B-6 Function: protein metabolism
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Deficiency is rare; seen in children 40% adolescent, adult, elderly women, oral contraception
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lecture 3-20 sec3p - Lecture 3-20 Water Soluble Vitamins...

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