Monday, February 28, 2011

Heart Supplements Warning

 
  Popping a pill to improve your heart health?  If you're taking a supplement to reduce your risk of heart attack and stroke you could be wasting your time, money or even worse, putting your health in danger.  Medical experts are now warning against the practice and urging consumers to be aware that when mixed with certain drugs, heart supplements can cause harmful interactions.
From Consumer Reports:
A number of large studies over the past several years failed to find that supplements of folic acid and other B vitamins, as well as vitamins C and E, prevent heart attacks or strokes. In one study, in fact, vitamin E was linked to an increased risk of hemorrhagic stroke.
One supplement—red yeast rice—can lower LDL (bad) cholesterol almost as effectively as certain statin drugs. But that's because it can contain a naturally occurring substance essentially identical to the prescription drug lovastatin (Altoprev, Mevacor, and generic). Unfortunately, that means it poses the same risks, too, which can be considerable, especially if you're not being monitored by a doctor.
Moreover, since heart supplements aren't carefully regulated by the Food and Drug Administration, it's often hard to know whether what's on the label is really in the package. Indeed, a study in the Oct. 25, 2010, issue of the Archives of Internal Medicine found "striking" variability in the amount of the active ingredients in 12 red yeast rice supplements. The labels "all said 600 milligrams on the bottle," said Ram Gordon, M.D., a cardiologist at the Chestnut Hill Hospital in Philadelphia and the lead author of the recent study. "The question is, 600 mg of what?" Our medical consultants say people should avoid all red yeast rice supplements.
The evidence for some other heart supplements—such as coenzyme Q-10, garlic and green tea—is often inconsistent or weak. And even those that are more likely to offer benefits can pose some risks, too, especially when taken with certain drugs. Even fish oil, which has good supporting evidence, probably shouldn't be taken with high blood-pressure medication or blood-thinning drugs.
Finally, supplements taken for noncardiac reasons can also interact with certain heart medication. Echinacea, for example, can make statins more potent, possibly increasing the risk of side effects, and St. John's wort can make those drugs less effective. "Many patients on heart drugs don't realize that a number of supplements—no matter what they're taken for—can interfere with how well heart drugs work," Gordon says.
Our advice: Don't take heart supplements without talking with a doctor first, especially if you take heart medication. And supplements should never be used in place of needed medication or as an excuse to skip proven protective measures, such as losing excess weight, exercising more, and eating a heart-healthy diet.
If you do opt for a heart supplement, look for one labeled "USP Verified." That indicates that the manufacturer has voluntarily asked the U.S. Pharmacopeia, a nonprofit, private standards-setting authority, to verify the quality, purity, and potency of its raw ingredients or finished products. For a list of products that have been verified by the USP, go to http://www.uspverified.org/.
For more information about improving your heart health click here:  http://www.heart.org/HEARTORG/GettingHealthy/GettingHealthy_UCM_001078_SubHomePage.jsp

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