Fish Oil: Omega 3 Fish Oil Prevents Stroke and Heart Attack

How does omega 3 fish oil prevent stroke and heart attack? According to researchers at the University of Southampton in England, eating fish and/or taking omega 3 fish oil supplements can save your life, by greatly reducing your risk of stroke and heart attack, both fatal and non-fatal. (The Lancet, Vol. 361: 477-85)

Scientists have long known hardening of the arteries (artherosclerosis) increases risk of stroke and heart attack. What happens is arterial plaque (atherosclerotic buildup) breaks loose, blocking smaller arteries leading to the brain and heart and cutting off the vital supply of oxygenated blood. You don’t want that to happen.

So the British researchers designed a clinical trial to see if fish oil supplements help prevent stroke and heart attack by improving plaque stability and reducing its tendency to dislodge from arterial walls.

Over 160 patients waiting for carotid endarterectomy (an operation that removes plaque from the carotid artery leading to the brain) were randomly assigned to three different groups. One group got omega 3 fish oil supplements, the second got sunflower omega 6 oil and the third a placebo blend of palm and soybean oils. The average time before surgery was 42 days on supplementation.

After surgery, the doctors analyzed the removed plaque, measuring it for inflammation and stability. And the results were outstanding.

Plaque taken from the sunflower and placebo groups showed increased inflammation and less stability. But plaque from fish oil patients showed no inflammation at all, indicating better stability and a reduced risk of breaking off and causing arterial blood clots.

The University of Southampton researchers concluded the increased plaque stability of the fish oil supplemented patients may be the reason why other researchers found a greater dietary intake of fish oil was associated with reduced risk of stroke and heart attack.

By the way, omega 3 fish oil in other studies has also been linked to decreased growth of arthersclerotic plaque and to a decreased risk of blood clots (thrombosis).

That’s why the American Heart Association and the U.S. National Institutes of Health recommend everyone eat fatty fish (salmon, sardines, herring or tuna) at least a couple of times a week. If it can save your life, it sound like a good idea, wouldn’t you agree?

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