| Antioxidant | |||||
 |
print this page |  |
email this page | ||
Antioxidants are compounds that neutralize or destroy free radicals (oxidants) that are naturally created in the body when cells in the body burn oxygen to produce energy. Free radicals are also produced by pollution, stress, smoking, excessive exercise, drinking alcohol and other factors. Antioxidants are found abundantly in fresh fruits and vegetables esepcially, but also in some grains, seeds and herbs. Antioxidants contribute to good health by reducing the levels of free radicals in the body.
There are many antioxidants, the most common ones are:
Besides the above vitamins and minerals, there are many herb and other nutrients which are also potent antioxidants.
Advertisement
- Antioxidants stop free radical damage to our bodies, especially to the DNA of our cells
- Fresh fruits and vegetables have an abundance of antioxidant nutrients
- Nuts, grains, some meats, poultry and fish also contain antioxidants
- Antioxidants reduce the risk of cancer
- Atioxidants slow down ageing
- Antioxidants have a protective effect on the heart
- Antioxidants act as stabilisers by preventing the breakdown (oxidation ) of polyunsaturated fatty acids such as essential fatty acids in oils and in the body
Advertisement
Why antioxidants are important
Antioxidants are important because they reduce the amount of free radicals in the body. Free radicals can clog arteries and contribute to cancer, diabetes, and other diseases. Free radicals also cause ageing to be accelerated.
By reducing the amount of free radical, antioxidants reduce the effects they produce and reduce any potential cellular damage that may otherwise occur.
Our bodies need a constant supply of antioxidants in our diet to counteract the effects of free radicals that are produced every day, from a variety of sources.
references
- Gutierrez RMP. Handbook of Naturally Occurring Compounds With Antioxidant Activity in Plants. 1st edition 2006. Nova Science Publishers
- Halliwell B, Gutteridge J. Free Radicals in Biology and Medicine. 4th edition 2007. Oxford University Press, USA
- Osiecki, Henry, The Nutrient Bible 2002, BioConcepts Publishing
- Packer L, Colman C. The Antioxidant Miracle: Put Lipoic Acid, Pycnogenol, and Vitamins E and C to Work for You. 1999, Wiley
- Rolfes SR, Pinna K, Whitney E. Understanding Normal and Clinical Nutrition. 7th Edition, 2005. Brooks Cole Publishing
To learn more, go to the following sites:
- CSIRO Antioxidant Fact Sheet (Australia)
- The National Cancer Institute Antioxidant FAQ (USA)
