Sunday, November 12, 2006

 

Antioxidant Vitamins

What are antioxidant vitamins?


Much research has recently focused on how antioxidant vitamins may reduce cardiovascular disease risk. Antioxidant vitamins — E, C and beta carotene (a form of vitamin A) — have potential health-promoting properties. Though the data are incomplete, up to 30 percent of Americans are taking some form of antioxidant supplement.

(I use catch word, "ACE" to remember antioxidant vitamins)


AHA Scientific Position


The American Heart Association doesn't recommend using antioxidant vitamin supplements until more complete data are available. We continue to recommend that people eat a variety of nutrient-rich foods daily from all the basic food groups.

Eating a variety of foods low in saturated fat, trans fat and cholesterol will provide a natural source of these vitamins, minerals and fiber.

Background


Oxidation of low-density lipoprotein (LDL or "bad") cholesterol is important in the development
of fatty buildups in the arteries. This process, called atherosclerosis, can lead to heart
attacks and strokes. Until recently, it was thought that LDL cholesterol lipoprotein oxidation
and its biological effects could be prevented by using antioxidant supplements. However, more
recent clinical trials have failed to demonstrate a beneficial effect of antioxidant supplements.
Some studies even suggest that antioxidant supplement use could have harmful effects.

Using dietary supplements of antioxidants to prevent cardiovascular disease should not be
recommended until their effect is proved in clinical trials that directly test their impact on
CVD end points. Beneficial effects must be demonstrated in well designed (randomized,
placebo-controlled) clinical trials before recommending widespread use to prevent cardiovascular disease.

At this time, the scientific evidence supports a diet high in food sources of antioxidants and other heart-protecting nutrients, such as fruits, vegetables, whole grains and nuts instead of antioxidant supplements to reduce risk of CVD.

-- AHA


Next post I will share which antioxidant suppliments I take.

 
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