VITAMIN A

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VITAMIN A

• By
• ALB
• Digestive Physiology

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I. VITAMINS

• A. History
• B. What are vitamins?
• C. Classifications
• 1. Water soluble
• 2. Fat soluble

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II. VITAMIN A

• A. History
• B. Forms
• C. Metabolism
• 1. Digestion and Absorption
• 2. Storage
• 3. Release

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• D. Sources
• 1.orange, yellow
• and deep green
• vegetables
• 2.good quality hay
• and pasture

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• E. Functions
• 1. Vision
• 2. Growth, Repair, and Cell Differentiation
• 3. Health of Epithelial Cells
• 4. Pregnancy and Fetal Development
• 5.Protection Against Infection

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• 6. Cancer Prevention
• 7. Other
• F. Uses
• 1. Eye Care
• 2. Skin Disorders
• 3. Psoriasis
• 4. HIV

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• G. Deficiencies (Causes and Signs)
• 1. Examples
• 2. Causes
• 3. Signs
• -eyes
• -skin
• -growth

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• -immune system
• -thyroid
• -cancer
• H. Interrelations with other Nutrients
• 1. Vitamin E
• 2. Calcium, Iron, and Zinc
• 3.Drugs

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• I. CATIONS
• 1. Supplements
• 2. Toxic Effects
• J. Supplements
• 1. Sources
• 2. Use of

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References

• Bloomfeild, Molly M., Lawrence J. Stephens.
  Chemistry and the Living Organism. 6th ed. John
  Wiley and Sons, Inc., New York. 1996. Pp.
  475-480.
• Raven, P.H., G.B. Johnson. Understanding Biology.
  3rd ed. Wm. C. Brown, Duluque, IA. 1995. Pp.
  138-142.
• Cunha, Tony J. Horse Feeding and Nutrition. 2nd
  ed. Academic Press, Inc., San Diego. 1991.
  Pp.39-51.
• Harper, Fredrick, et al. Feeding to Win II. Eqine
  Research Inc., Grand Praire, TX. 1992. Pp. 25-50.
• Adams, R.H.,et al. Veterinary Treatments and
  Medications for Horsemen. Equine Research Inc.,
  Grand Praire, TX. 1977. Pp. 520-536.
• Talor, R.E., Ralph Bogart. Scientific Farm Animal
  Production. 3rd ed. Macmillan Publishing, New
  York . 1998. P.70, pp. 237-239.
• Pond, W.G.,et al. Basic Animal Nutrition and
  Feeding. 4th ed. John Wiley and Sons. New York.
  Pp. 225-244.
• www.britannica.com
• www.bookman.com.au/vitamins/
• www.ansi.cornell.edu/courses/as625/1998term/Rosen/
  main.html
• www.books.nap.edu/books/030906029X/html/103.htmlp
  agetop

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Now you know why Popeye eats his spinach.