3.2.2%20vitamins%20d%2c%20k%20%26%20e%20-%20r

3.2.2%20vitamins%20d%2c%20k%20%26%20e%20-%20r - Vitamin...

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3.2.2. Fat Soluble Vitamins Vitamins D, K & E
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Vitamin D (calciferol)  sunshine vitamin  body can make it from cholesterol  functions as a hormone
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Vitamin D (calciferol) Functions:  calcium concentration in blood  - muscle contraction  - conduction of nerve impulses - blood pressure regulation  
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Calcium balance in the Blood Fig 11.11
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Blood Calcium Regulation Fig 13.2 Vitamin D
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Vitamin D (calciferol) Functions:  calcium concentration in blood  - muscle contraction  - conduction of nerve impulses - blood pressure regulation    bone health  gene expression  cell differentiation
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Vitamin D (calciferol) Sources: cod liver oil, fish, fortified milk,  fortified cereal, eggs, cheese  
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Vitamin D (calciferol) Deficiencies:  rickets in children  osteomalacia  osteoporosis  Toxicities:  hypercalcemia 
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Vitamin E (alpha-tocopherol) Function: antioxidant Fig 11.13
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Sources:  plants – vegetable oils, seeds, nuts,  fortified cereals  animals – poor source of vitamin E
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Unformatted text preview: Vitamin E (alpha-tocopherol) Vitamin E (alpha-tocopherol) Deficiencies: rare • neuromuscular dysfunction • hemolytic anemia Toxicities: rare • excess amounts cause bleeding (interferes with blood clotting) Vitamin K Function: • blood clotting • bone formation Fig 11.15 Blood Clotting Process Vitamin K Sources: • leafy green vegetables; milk, fortified cereals; fish; legumes • intestinal bacteria Losses: • destroyed by light and high cooking temperatures • liver maintains small reserve; excess Vitamin K is broken down and excreted from the body Vitamin K Deficiencies: • poor fat absorption • from drug interaction • newborn babies VKDB (Vit K deficiency bleeding) Vitamin K Toxicities: • is rare since excess vitamin K is excreted from the body Summary: fat-soluble vitamins...
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3.2.2%20vitamins%20d%2c%20k%20%26%20e%20-%20r - Vitamin...

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