The majority of vitamin E's benefits stem from its antioxidant  qualities. That means it combines with oxygen and destroys free  radicals. It protects polyunsaturated fats and other oxygen-sensitive  compounds such as vitamin A from being destroyed by damaging oxidation  reactions.  
Vitamin E and Antioxidation  
 
Vitamin E's antioxidant properties are also important to  cell membranes. For example, vitamin E protects lung cells that are in  constant contact with oxygen and white blood cells that help fight  disease.  
 
  But the benefits of vitamin E's antioxidant role may actually go much  further. There is significant evidence vitamin E can protect against  heart disease and may slow the deterioration associated with aging.  Critics scoffed at such claims in the past, but an understanding of the  importance of vitamin E's antioxidant role may be beginning to pay off.   However, as with betacarotene, the effect of vitamin E in preventing  heart disease may be both timing-sensitive and dose sensitive.   
 
  Vitamin E also acts as an antioxidant in foods. The vitamin E in  vegetable oils helps keep them from being oxidized and turning rancid.  Likewise, it protects vitamin A in foods from being oxidized. This makes  vitamin E a useful food preservative.  
  
   The Therapeutic Value of Vitamin E   
  
  As an antioxidant with a powerful punch, vitamin E helps prevent  cancer, heart disease, strokes, cataracts, and possibly some of the  signs of aging.  
 
  Vitamin E protects artery walls and keeps the "bad" low-density  lipoprotein (LDL) cholesterol from being oxidized. Oxidation of LDL  cholesterol marks the beginning of clogged arteries. Vitamin E also  keeps the blood thin by preventing blood platelets from clumping  together. High levels of vitamin E in the body decrease the risk of a  non-fatal heart attack or stroke in most people.  
 
  A dynamic cancer fighter, vitamin E protects cells and DNA from damage  that can turn cancerous. It reduces the growth of tumors while  enhancing immune function and preventing precancerous substances from  being turned into carcinogens. Studies with mice show that vitamin E  applied to the skin may help prevent skin cancer resulting from exposure  to ultraviolet radiation.  
 
  Women who suffer from fibrocystic breast disease can often find relief  with vitamin E supplementation. Fibrocystic breast disease is  characterized by painful breasts, sometimes with benign lumps or  swelling, starting several days before the menstrual period. Researchers  aren't sure why vitamin E helps this condition, but numerous studies  indicate that it does.  
 
  Vitamin E can be beneficial to people with diabetes. It enhances the  action of insulin and improves blood glucose metabolism by reducing  oxidative stress.  
 
  This humble nutrient keeps the nervous system healthy by protecting  the myelin sheaths that surround nerves. It also appears to prevent  mental degeneration due to aging, possibly including Alzheimer disease.  
 
  Athletes need to get adequate amounts of vitamin E. The body's own  metabolism creates free radicals during excessive aerobic exercise.  Vitamin E reserves make sure these free radicals don't get out of hand  and cause trouble. Vitamin E therapy also treats claudication-pains in  the calf muscles that occur at night or during exercise.  
Premature babies receive vitamin E to reduce or prevent oxygen  damage to the retina of the eye as a result of artificial ventilation.  
 
  Ongoing animal studies suggest that vitamin E may limit lung damage  caused by air pollution. It appears that vitamin E can reduce the  activity of such common air pollutants as ozone and nitrogen dioxide.  
 
  Vitamin E applied to cuts may very well increase the healing rate  because it minimizes oxidation reactions in the wound and also keeps the  wound moist.  
 
  Many women report that vitamin E helps reduce hot flashes and other symptoms of menopause.  
  Though vitamin E can slow down the oxidation of fats that occurs in  aging, experimental studies have not shown it to increase the life span  of animals. Neither has it been shown to control such signs of aging as  wrinkled skin or gray hair.  
  
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There are many more uses of vitamin E that science is only beginning to investigate. This helpful vitamin will probably continue to make the news every so often.
 
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