About: Antioxidant

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Antioxidants protect key cell components by neutralizing the damaging effects of "free radicals," natural byproducts of cell metabolism. Free radicals form when oxygen is metabolized, or burned by the body. Foods that are high in anti-oxidants include: * Blueberries *

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rdfs:label	Antioxidant
rdfs:comment	Antioxidants protect key cell components by neutralizing the damaging effects of "free radicals," natural byproducts of cell metabolism. Free radicals form when oxygen is metabolized, or burned by the body. Foods that are high in anti-oxidants include: * Blueberries * Antioxidants decrease the damage done to cells by reducing oxidants before they can damage the cell. As food produces free radicals (oxidants) when metabolized, antioxidant-rich diets are thought to stave off the effects of aging significantly better than diets lacking in antioxidants. The reduced levels of free radicals, resulting from a reduction in their production by metabolism, is thought to be a major cause of the success of caloric restriction in increasing life span.
sameAs	dbr:Antioxidant
dcterms:subject	Glossary Introductory Articles Antioxidants
abstract	Antioxidants decrease the damage done to cells by reducing oxidants before they can damage the cell. As food produces free radicals (oxidants) when metabolized, antioxidant-rich diets are thought to stave off the effects of aging significantly better than diets lacking in antioxidants. The reduced levels of free radicals, resulting from a reduction in their production by metabolism, is thought to be a major cause of the success of caloric restriction in increasing life span. Although there is little doubt that antioxidants are a necessary component for good health, there is considerable doubt as to the most beneficial antioxidant(s) and as to the optimal amount for results. One study of lung cancer patients found that those given beta-carotene supplements had worse prognoses. This is believed to be due to antioxidant interference with the body's normal use of localised free radicals e.g. nitric oxide for cell signalling. Due to the complex nature of the interactions of antioxidants with the body, it is difficult to interpret the results of many experiments designed to test such things. In vitro testing (outside the body) has shown many natural antioxidants, in specific concentration, can halt the growth of or even kill cancerous cells. There have been clinical studies showing specific antioxidants have a beneficial effect against certain cancers. Antioxidants protect key cell components by neutralizing the damaging effects of "free radicals," natural byproducts of cell metabolism. Free radicals form when oxygen is metabolized, or burned by the body. Foods that are high in anti-oxidants include: * Blueberries *

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