Fish Oil Supplements May Save Lives
Fish oil could potentially save more lives than cardiac defibrillators, devices used to revive individuals whose hearts have stopped beating and to prevent and treat life-threatening heart arrhythmias, researchers estimate in a new report.
Past research has linked the omega-3 fatty acids found in oily fish to a lower risk of fatal heart rhythm disturbances. This latest study tried to estimate the potential public health impact of raising adults' omega-3 levels with fish oil supplements.
Using a computer-simulated community of 100,000 Americans and data from past medical studies, the researchers calculated that raising omega-3 levels would save 58 lives each year.
This amounts to a 6.4-percent total death reduction -- mostly by preventing sudden cardiac death in apparently healthy people, according to the study authors, led by Dr. Thomas E. Kottke of the Heart Center at Regions Hospital in St. Paul, Minnesota.
Conversely, the researchers estimate that far fewer lives would be saved by defibrillators, devices that deliver a "shock" to restart the heart or to resolve ventricular fibrillation, an otherwise fatal heartbeat irregularity in which the heart quivers instead of contracting normally.
For example, the study found, even if automated external defibrillators (AEDs) were available in every home and public area, the devices would lower a community's annual death rate by less than 1 percent.
AEDs are portable devices that can be used by lay people to shock someone in cardiac arrest. They are frequently available in public places such as large stores or on airplanes. Though the devices do save lives, the researchers note that AEDs would make little difference in the overall rate of sudden cardiac death.
Kottke's team estimates that implantable defibrillators would lower the cardiac death rate by 3.3 percent, still not as much as the 6.6-percent lower death rate achieved by increasing the use of fish oil supplements.
Though the implantable devices are effective, the researchers point out that about half of adults who die suddenly from cardiac arrest have no warning signs beforehand -- and would, therefore, never be candidates for an implanted defibrillator.
The study, which is published in the American Journal of Preventive Medicine, has its limitations, as a computer simulation. Though the researchers based their estimates of fish oil benefits on two large studies, it's not yet clear that omega-3 fatty acids prevent sudden cardiac death in apparently healthy people.
Ongoing trials in Italy and England may help answer this question, Kottke and his colleagues note.
If fish oil is as effective against fatal heart arrhythmias as evidence suggests, the researchers conclude, it would have more widespread benefits than either AEDs or implanted defibrillators.
SOURCE: American Journal of Preventive Medicine, October 2006
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Omega-3's and omega-6's belong to a family of fats known as essential fatty acids. The right balance of these two types of fatty acids is important for the healthy functioning of many parts of the body, including brain development. Unfortunately, because the human body cannot manufacture these essential fatty acids, they must be provided through diet. These omega-3 and omega-6 fatty acids are found in fish, and seafood, some nuts and seeds and green leafy vegetables.
In a well-balanced diet, both omega-3's and omega-6's should be present. In modern diets, however, saturated fats and vegetable oils – all loaded with omega-6's – have become predominant. At the same time, the intake of omega-3 fatty acids from fish have declined while modern farming and commercial food production have further stripped foods of omega-3 content in an effort to prolong shelf life. The ideal omega-6 to omega-3 relationship is quoted at 4 to 1, but in persons who do not eat fish twice a week, experts believe that ratio is closer to 20 to 1, and is responsible for many of the health problems that plague us.
Given the heavy metals and other toxins found in fish, people are undertandably concerned about consuming significant amounts of seafood. And yet, by not consuming fish, we all miss the opportunity to obtain important omega-3 fats in the diet. Supplementation with a high-quality omega-3 product may be the answer.
WINOmeg3complex™ is a pharmaceutical grade omega-3 ethyl ester concentrate which is obtained from purified fish oil. The basic material is crude deep-sea fish oil.
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** This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.
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