vitamins

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Author:
casey1989
ID:
76328
Filename:
vitamins
Updated:
2011-03-30 22:34:09
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vitamins
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  1. The body does NOT Metabolize
    • vitamins to yield
    • energy
  2. Bioavailability
    • rate and extent
    • nutrient is absorbed and used
  3. Precursors
    (or provitamins) are consumed in inactive form and become active vitamins in body
  4. Organic nature of vitamins destroyed by ?
    • exposure to light,
    • oxidation, cooking, and storage
  5. Water-soluble vitamins (B vitamins and
    vitamin C)
    absorbed directly into blood and travel freely
  6. Fat-soluble vitamins (vitamins A, D, E
    & K)
    absorbed 1st into lymph, then blood
  7. water soluable vitamins circulate
    freely
  8. water soluable vitamins are excreeted in
    urine
  9. fat soluable vitamins may require
    portein carriers
  10. Fat-soluble vitamins
    stored in cells associated with fat
  11. B vitamins form coenzymes which ?
    • assist enzymes in
    • release of energy
  12. B vitamins participate
    in
    • metabolism and cell
    • multiplication
  13. b vitamins faciliate
    energy
  14. b vitamins build
    • new cells to deliver oxygen and nutrients for energy
    • reactions
  15. Grains group provides
    • thiamin, riboflavin,
    • niacin and folate
  16. Fruits & vegetables provide
    folate
  17. Meat
    group provides
    • thiamin, niacin,
    • vitamin B6 and vitamin B12
  18. Milk
    group provides
    • §riboflavin
    • and vitamin B12
  19. Riboflavin
    involved in
    • energy
    • metabolism
  20. riboflavin Easily
    destroyed by ?
    ultraviolet light and irradiation
  21. Thiamin
    leaches into
    • water
    • with boiling or blanching
  22. Niacin flush dilates
    • capillaries and may be
    • painful
  23. niacin food sources?
    §Milk

    • §Eggs,
    • meat, poultry and fish

    • §Whole-grain
    • and enriched breads and cereals

    • §Nuts
    • and all protein-containing foods
  24. RIBOFLAVIN FOOD SOURCES?
    • §Milk
    • products, including yogurt and cheese

    • §Enriched
    • and whole grains

    §Liver
  25. biotin food sources?
    • §Widespread
    • in foods

    • §Organ
    • meats, egg yolks and fish

    §Soybeans

    • §Whole
    • grains
  26. Biotin can also be
    synthesized by
    intestinal bacteria
  27. Pantothenic Acid food sources?
    • §Widespread
    • in foods

    • §Organ
    • meats

    • §Mushrooms,
    • avocados, and broccoli

    • §Whole
    • grains
  28. B6
    fortified cereal
  29. Folate
    • involved in synthesis
    • of DNA and formation of new cells
  30. Neural
    tube defects
    spina bifida and anencephaly
  31. childbearing women eat
    folate
  32. Folate may help prevent
    cancer
  33. folate?
    • §Fortified
    • grains

    • §Leafy
    • green vegetables

    • §Legumes
    • and seeds

    §Liver
  34. b12 food sources?
    §Meat, fish, poultry, and shellfish

    §Milk, cheese and eggs

    §Fortified cereals
  35. choline?
    • Milk, liver, eggs
    • & peanuts
  36. Vitamin imposters
    • substances needed by
    • other forms of life but not human beings
  37. §Antioxidant in vitamin c?
    •Defends against free radicals

    • •Protects tissues from oxidative
    • stress
  38. Collagen is used for ?
    • bones and teeth, scar
    • tissue, and artery walls
  39. vitamin c Works with iron to
    form hydroxiproline
    • which is needed in
    • collagen formation
  40. Vitamin C needs increase during
    body stress
    • infections, burns,
    • extremely high or low temperatures, heavy metal intakes, certain medications,
    • and smoking
  41. vitamin rda for men
    90 mg
  42. rda for women?
    75 mg
  43. rda for smokers
    add 35mg

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