A QUICK GLANCE AT ANTIOXIDANTS

Antioxidants are chemicals or substances which prevent or slow down the breakdown of other substances.

As the body metabolizes food, it forms substances called free radicals. Free radicals are unstable substances which stabilize themselves by reacting with other substances. If this sequence is not stopped, it will lead to a chain reaction, which can disrupt living cells.

To prevent this chain reaction, the body produces antioxidants. Antioxidants react with the free radicals and stabilize them while at the same time remaining stable themselves. As the body ages, or when it is afflicted with illness or disease, it may become unable to produce sufficient antioxidants. This may lead to cell damage. By eating foods which contain antioxidants or which contain substances that can be converted by the body to antioxidants, we can assist our body to remain healthy.

Among the antioxidants are Vitamin A/Beta Carotene, Vitamin C, Vitamin E, and Selenium.

Vitamin A/Beta Carotene is needed for bone development, vision, reproduction and healthy skin. The body converts the nutrient beta carotene into vitamin A. Vitamin A can be found in liver, dairy products, eggs and fish liver oil while beta carotene can be found in dark red, green and yellow vegetables. Deficiencies of Vitamin A may lead to skin and eye problems.

Vitamin C is needed for collagen production for bone, cartilage, tendons and ligaments; and may boost the immune system. It can be found in many fruits, bell peppers, broccoli, sweet potatoes, and many leafy vegetables. Deficiencies of Vitamin C can lead to scurvy and sluggishness.

Vitamin E prevents cell membrane damage. It can be found in wheat-germ oil, soybeans, nuts, seeds, sweet potatoes.

Selenium is a essential mineral for normal functioning of the immune system and thyroid gland. It can be found in vegetables and grains grown in areas whose soil contains selenium, such as the American Midwest. Deficiencies may lead to thyroid and heart problems.

While supplements are available for all these antioxidants, excesses can lead to other problems. It is best to eat a balanced diet, with foods from all of the food groups. 

(Extracted from information in The WashingtonPost.com, August 7, 2001 and www.HealthCheckSystems.com.)