Saturday, November 5, 2011

ANTI-OXIDANTS


Antioxidants are substances that may protect your cells against the effects of free radicals. Free radicals are molecules produced when your body breaks down food, or by environmental exposures like tobacco smoke and radiation. Free radicals can damage cells, and may play a role in heart disease, cancer and other diseases.

Antioxidant substances include

* Beta-carotene                                                                  
* Lutein
* Lycopene
* Selenium
* Vitamin A
* Vitamin C
* Vitamin E

Antioxidants are found in many foods. These include fruits and vegetables, nuts, grains, and some meats, poultry and fish.

NOTE:

Oxidation of low-density lipoprotein (LDL or "bad") cholesterol is important in the development of fatty buildups in the arteries. This process, called atherosclerosis, can lead to heart attacks and strokes. Until recently, it was thought that LDL cholesterol lipoprotein oxidation and its biological effects could be prevented by using antioxidant supplements. However, more recent clinical trials have failed to demonstrate a beneficial effect of antioxidant supplements.

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