What is an Antioxidant?
30 viewsBy now you’ve heard about the green tea’s antioxidant abilities, and how the quality of this antioxidant helps fight against dangerous diseases like cancer and heart disease. But what is an antioxidant? And why would anything that’s anti-oxygen be good for you or for your bodies health?
Antioxidants themselves don’t do anything to oxygen. What they do, do is fight a chemical reaction in your body called oxidation. I am sure your saying right now, wait a second – that’s what causes metal to rust – I am not made of metal! Your right to say that but oxidation is the interaction between oxygen molecules and the substances they come in contact with. If this just so happens to be living tissue, then that’s when disease occurs.
Free Radicals with in your body are highly unstable molecules that travel around your body causing nothing but major problems. Free radicals are generated by exposure to UV rays, toxins,smoking and other sources. The major source of the free radicals is from the oxygen molecule its self.
Oxygen typically travels throughout the body in pairs, and these two molecules share electrons. But sometimes this double molecule splits into two separate oxygen molecules called singlet oxygen. When this happens, there are no longer enough electrons to go around, so each oxygen molecule ends up one electron short. This destabilizes the molecule, in a sense throwing it off balance. In order too stabilize itself, it races off throughout the body in search of another electron.
But singlet oxygen doesn’t just wait for a spare electron to float on by. Instead, it boldly steals one from some other molecule. This destabilizes the “new” molecule which, in turn, careens off to steal an electron from yet another molecule. The process of serial “electron stealing” damages cells, tissues, organs and even entire body systems, and is believed to be a major cause of cancer, heart disease, aging and many other conditions.
Antioxidants work against “electron stealing” by neutralizing and stabilizing free radicals. They do this by donating an electron so that singlet oxygen and other free radicals no longer have the urge to “steal.” And while the body does produce a certain amount of antioxidants for the express purpose of taking care of such problems, it also needs the added help of antioxidants found in foods.
Among others, these include beta-carotene, vitamins C and E, the mineral selenium, and various phytochemicals such as lycopene and quercetin. But the catechins, especially EGCg, are among the most powerful and effective antioxidants of all.
Celebrities - Posted by Collin James on February 27, 2009
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