Study Reveals How Fish Oils Help the Heart

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While the new study found that the more fish consumed, the greater the benefits, most gains were achieved with just one or two meals of fish a week. That was especially true for the lower heart rate, Mozaffarian said.

But it had to be the right kind of fish, and prepared the right way. No effect on the heart's electrical activity was seen with fried fish, such as fish burgers or fish sticks. Those commercial products do not increase blood levels of omega-3 fatty acids.

And people who think they can take a shortcut by using fish-oil supplements are mistaken, said Alice H. Lichtenstein, professor of public health and family medicine at Tufts University School of Medicine, and a spokeswoman for the American Heart Association.

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"Recent studies have cast doubt on the belief that fish-oil supplements are beneficial," Lichtenstein said.

More information

The latest recommendations on omega-3 fatty acids are available from the American Heart Association (www.americanheart.org ).

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