Vitamins - HNF 150 P Thurston VITAMINS I. What is a...

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HNF 150             Fall 2007 P Thurston      Lecture Outline VITAMINS I.  What is a Vitamin? A.  Types of vitamins: Fat-soluble =  A,D,E,K Water-soluble =  B Vitamins (Thiamin, Riboflavin, Niacin, Folate,  B12, B6, Biotin, and Pantothenic Acid) and Vitamin C B.  How Vitamin Recommendations are Set = 1
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HNF 150             Fall 2007 P Thurston      Lecture Outline II. Fat Soluble Vitamins II.  Fat Soluble Vitamins: Found in fats and oils of foods Require  bile  for absorption Absorbed by the  lymph Travel through the body associated with protein carriers Stored in  liver  and  fatty tissue  until needed The body can survive  weeks  without consuming fat soluble vitamins  Can be  toxic  if take in too much Diverse roles in body A. Vitamin D 1. Facts  NOT an essential nutrient because the body can produce vitamin D  from  sunlight. Sunlight exposure affected by: Air pollution City living Clothing Geography Homebound Season Sunscreen Time of Day 2. Functions:   Hormone (main function): blood calcium and healthy bones Part of brain, heart, pancreas, skin, and reproductive organs  Immune system- stimulates the maturation of immune cells 2
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HNF 150             Fall 2007 P Thurston      Lecture Outline 3. Deficiency: Rickets-kids Osteomalacia-adults 4. Toxicity:  5x the RDA (Most toxic of all vitamins) 5. Food Sources:  Fortified milk, salmon, shrimp B. Vitamin K 6. Functions (2):  Blood clotting factor (K-oagulation) and bone formation 7. Dietary Source: Cauliflower, Canola Oil, Soybeans, Cabbage, Spinach, Lettuce, *Intestinal bacteria Review Questions: Why can excesses of fat sol Vit be toxic? How does one get toxic amounts?
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Vitamins - HNF 150 P Thurston VITAMINS I. What is a...

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