Friday, September 23, 2011

Omega-3 Fatty Acids Reduce Blood Vessel Stiffness

Omega-3 Fatty Acids Now Reported To Reduce Blood Vessel Stiffness
Scientifically-Supported Studies Demonstrate
Important Benefits of Omega-3 Nutritional Lipids
And Fish-Derived Oils
For Cardiovascular Health...

A review of the scientific literature reveals that omega-3 fatty acids offer a scientifically supported means of reducing arterial stiffness, states a new review from Australia.

According to findings published in the British Journal of Nutrition, analysis of data from ten clinical trials revealed that omega-3 fatty acids were associated with an improvement of both pulse wave velocity and arterial compliance, both are measures of the stiffness of arteries.

"The findings of the present study reveal that supplementation with omega-3 offers a scientifically supported means of reducing arterial stiffness," wrote researchers from the NICM Centre for Study of Natural Medicines and Neurocognition in Australia.

"Reduction in arterial stiffness by Omega-3 may account for some of its purported cardio-protective effects."

Heart Health Benefits and More...
The heart health benefits of consuming oily fish, and the omega-3 fatty acids they contain, are well-documented, being first reported in the early 1970s in The Lancet and The American Journal of Clinical Nutrition. To date, the polyunsaturated fatty acids (PUFAs) have been linked to improvements in blood lipid levels, a reduced tendency of thrombosis, blood pressure and heart rate improvements, as well as improved vascular function.

Beyond heart health, omega-3 fatty acids, (EPA and DHA) have been linked to a wide-range of health benefits, including reduced risk of certain cancers, good development of infants during pregnancy, joint health, and improved behavior and mood.

Review Details...
The reviewers conducted the first meta-analysis to examine the effects of omega-3 supplementation on the stiffness of arteries.

The literature yielded ten randomized and controlled adult human clinical trials. Four trials measured pulse wave velocity and six measured arterial compliance.

"Meta-analysis revealed that omega-3 was statistically significant in effectively improving both PWV and arterial compliance," wrote the researchers.

Daily Dosages...
A recent article, also published in the British Journal of Nutrition concluded that daily doses of omega-3s of at least 250 milligrams are required to reduce the risk of sudden cardiac death and other heart conditions.

A dose of at least 250 mg of the long-chain omega-3 fatty acids (LCFA), eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), was associated with a 35 percent reduction in the risk of sudden cardiac death.

In addition, such doses were associated with a 'near-significant' 17 percent decrease in the risk of 'total fatal coronary events', according to a team of researchers from academia and industry.

"Thus, the intake of 250 mg omega-3 long-chain omega-3 fatty acids per day may, indeed, be a minimum target to be achieved by the general population for the promotion of cardiovascular health," wrote authors from Cantox Health Sciences International.

Source: British Journal of Nutrition
(Published online)
"Do long-chain n-3 fatty acids reduce arterial stiffness? A meta-analysis of randomised controlled trials"

This article is for informational and educational purposes only, and is not intended to provide medical advice,diagnosis or treatment. Contact your doctor or healthcare professional for medical and nutritional consultation.

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