VITAMIN A

By

ALB

Digestive Physiology

I. VITAMINS

• A. History

• B. What are vitamins?

• C. Classifications

• 1. Water soluble

• 2. Fat soluble

II. VITAMIN A

• A. History

• B. Forms

• C. Metabolism

• 1. Digestion and Absorption

• 2. Storage

• 3. Release

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

• E. Functions

• 1. Vision

• 2. Growth, Repair, and Cell Differentiation

• 3. Health of Epithelial Cells

• 4. Pregnancy and Fetal Development

• 5.Protection Against Infection

• 6. Cancer Prevention

• 7. Other

• F. Uses

• 1. Eye Care

• 2. Skin Disorders

• 3. Psoriasis

• 4. HIV

• G. Deficiencies (Causes and Signs)

• 1. Examples• 2. Causes• 3. Signs• -eyes• -skin• -growth

• -immune system

• -thyroid

• -cancer

• H. Interrelations with other Nutrients

• 1. Vitamin E

• 2. Calcium, Iron, and Zinc

• 3.Drugs

• I. CATIONS

• 1. Supplements

• 2. Toxic Effects

• J. Supplements

• 1. Sources

• 2. Use of

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.html#pagetop

Now you know why Popeye eats his spinach.