Fish Oil's Benefits Remain Elusive

Review finds it may cut cardiac mortality but not help those with heart rhythm problems

Please note: This article was published more than one year ago. The facts and conclusions presented may have since changed and may no longer be accurate. And "More information" links may no longer work. Questions about personal health should always be referred to a physician or other health care professional.

En Español

WEDNESDAY, Dec. 24, 2008 (HealthDay News) -- Consuming fish oil appears to reduce the chance of death from heart problems, but it may not help those with heart rhythm problems, a new analysis shows.

The conclusions are based on a Canadian review of dozens of fish oil studies involving more than 30,000 people. The study, by a team at the University of Alberta, in Edmonton, was published in the online edition of BMJ.

Eleven studies reported fish oil supplements helping reduce deaths from heart problems by 20 percent; however, none of the studies were able to determine the optimal dose or formulation of fish oil.

Six studies reported no benefit of fish oil in preventing sudden cardiac death. Three studies of whether fish oil supplements helped reduce the need for implantable cardiac defibrillators showed a neutral effect.

An accompanying editorial calls for more funding on the fish oil issue, not only to determine whether a health benefit truly exists, but also to protect the world's marine life.

More information

The U.S. National Library of Medicine has more about heart disease.

SOURCE: BMJ, news release, Dec. 23, 2008


Last Updated: