New Sustainable Plant Source Of Omega-3
: "A study by scientists from King's College London has found that relatively small amounts of omega-3 fatty acids from algae can lower blood pressure and could ultimately reduce the risk of cardiovascular disease. This form of omega-3, unlike fish oil, has the advantage of being both sustainable and acceptable to vegetarians.
The research, which is published in the April issue of the Journal of Nutrition, made measurements of cardiovascular function in healthy middle-aged men and women before and after three months supplementation with a placebo or a purified oil rich in the omega-3 fatty acid docosahexaenoic acid (DHA). The DHA was extracted from the marine algae crypthecodinium cohnii. Each subject received both DHA and placebo with a four month break between treatments. The study was conducted ‘double-blind' so that neither the investigators nor the subjects knew which treatment was which.
Results showed that a daily intake of 0.7g DHA lowered diastolic blood pressure by 3mm of Hg. Diastolic blood pressure (resting or background pressure) is a strong risk factor for cardiovascular events. A 3mm reduction in the average population blood pressure could help to prevent thousands of heart attacks and strokes.
Previous studies which have used fish oil have found in excess of 2-3g of omega-3 fatty acids are needed to lower blood pressure; fish"