An antioxidant is a molecule capable of inhibiting the oxidation of other molecules. Oxidation is a chemical reaction that transfers electrons from a substance to an oxidizing agent. Oxidation reactions can produce free radicals. In turn, these radicals can start chain reactions that damage cells. Antioxidants terminate these chain reactions by removing free radical intermediates, and inhibit other oxidation reactions. They do this by being oxidized themselves, so antioxidants are often reducing agents such as thiols, ascorbic acid or polyphenols.
As oxidative stress might be an important part of many human diseases, the use of antioxidants in pharmacology is intensively studied, particularly as treatments for stroke and neurodegenerative diseases. However, it is unknown whether oxidative stress is the cause or the consequence of disease.
Antioxidants are widely used as ingredients in dietary supplements in the hope of maintaining health and preventing diseases such as cancer, coronary heart disease and even altitude sickness. Studies suggested that antioxidant supplements might promote health, although these studies may not have been conclusive. In addition to these uses of natural antioxidants in medicine, these compounds have many industrial uses, such as preservatives in food and cosmetics and preventing the degradation of rubber and gasoline.
|Others (Anti Caking.etc)|
|Others (Bulking Agent.etc)|
|Vitamin B Complex|
|The Poisons You Put On Your Face|
|Vaccines and Autism|
|Cancer Cures and the Truth|
|Dangers in Toothpaste|
|Is Fluoride really safe?|
|The Truth about Swine Flu|
|Wotzinurfood Feature Archives|