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Title: Oxidants Referred to as Free Radicals
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Oxidants Referred to as Free Radicals

Oxidants, usually referred to as 'free radicals' are produced as a natural by-product of the millions of biochemical processes undertaken by the body every minute. The same life-giving oxygen that supports all the functions of the body creates these harmful by-products which cause cell damage, usually to DNA, fats and proteins.  Free radicals also enter the body through external influences such as exposure to the sun, pesticides and other kinds of environmental pollution. In addition, their levels are increased by mental and physical stress, the consumption of alcoholic beverages, unhealthy foods, and cigarette smoke.

If the amount of free radical oxidation in the body is allowed to rise to an unhealthy level, it can result in extensive damage to cellular components and can accelerate the ageing process.  More importantly, it may contribute to a wide range of degenerative illnesses and reduce the body's ability to deal with other problems, including cardiovascular malfunction, eye disease, and cancer.

Antioxidants counter these effects by binding with free radicals before they can cause damage. They then convert them into non-damaging biochemical substances, assisting enormously with the reparation of cellular damage.

• Certain antioxidant enzymes are produced within the body. Catalase coverts hydrogen peroxide into water and oxygen. 
•  Superoxide dismutase breaks antioxidants down into hydrogen peroxide. 
•  Glutathione is a detoxifying agent, changing the form of toxins so that they are easily eliminated by the body. 

Other antioxidants can be consumed through the diet. Some of the better known include the antioxidant vitamins beta-carotene, vitamin B6, vitamin C and vitamin E. Minerals such as selenium, zinc, glutathione and co-enzyme Q10 may also have antioxidant properties, and so may flavonoids such as cranberry, some amino acids, plus organic extracts from milk thistle and the tree known as ginkgo biloba.  A diet rich in fresh fruits and vegetables provides a large supply of these anti-oxidants, to help eliminate damaging free radicals. The highest concentrations are found in fruits and leafy green vegetables, such as carrots, orange and red peppers, spinach and tomatoes.

Cooking can destroy some antioxidants and interfere with the body's ability to absorb them, so eating raw vegetables and fruit, and including sprouts in the diet can help. Antioxidants are best taken in combination, since single antioxidants, such as vitamin E, need other vitamins in order to work as an effective antioxidant. Food and natural supplements may therefore provide the most bio-available source of antioxidants. Natural products from the rain forests of the world are some of the best sources of natural antioxidants ever found. Fruits like the acai berry are amazing the health world because of the wide range and high number of antioxidants they contain, making them a perfect source of antioxidants.

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