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Omega-3 Supplements No Help Against Repeat Heart Trouble: Review
Date:4/9/2012

By Kathleen Doheny
HealthDay Reporter

MONDAY, April 9 (HealthDay News) -- Taking omega-3 fatty acid supplements won't protect against repeat heart attacks, strokes or other cardiovascular problems, a new analysis indicates.

"I was not surprised at these findings because I assumed that there was no benefit of omega-3 supplements," said lead researcher Dr. Seung-Kwon Myung, chief of the carcinogenesis branch of the National Cancer Center, Republic of Korea.

The study is published online April 9 in the Archives of Internal Medicine.

Instead of taking supplements, people trying to prevent heart disease or repeat problems should eat oily fish such as salmon, tuna and mackerel, which are all rich in omega-3 fatty acids, Myung said.

"It is effective against cardiovascular disease to eat fish rich in omega-3 fatty acids, not supplements," he said.

Many studies have demonstrated that eating fatty fish two or more times a week is linked with a lower risk of death from cardiovascular disease.

However, studies that looked at the potential cardiovascular benefits of fish oil supplements have produced mixed results.

Myung and his colleagues selected 14 studies that had been published in the medical literature. In all, the studies looked at more than 20,000 patients who had a history of cardiovascular disease.

The patients' average age was 63. Nearly 80 percent were men. The studies were published between 1995 and 2010. The daily dose of omega-3 fatty acid supplement ranged from about half a gram to nearly 5 grams a day.

The follow-up period ranged from one year to nearly five years.

Myung's team looked to see if the supplements made a difference in sudden cardiac death, heart attack, congestive heart failure, death from any cause, stroke or transient ischemic attacks (often called TIAs or mini-strokes).

The supplements did not reduce the risk of any of those problems.


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