The Omega-3s EPA and DHA are believed to reduce blood clots inside arteries. These clots are caused by platelets sticking together and blocking blood flow to the heart and the brain among other organs. In addition to their effect on platelets, Omega-3s are seen to have anti-inflammatory effects. Inflammation may contribute to damage of blood vessels.
Numerous studies also confirm the important role that Omega-3s play in decreasing high triglycerides, a type of fat that can lead to arterial damage and now recognized as an independent risk factor for heart disease. The American Heart Association recommends that patients who need to lower their triglycerides should take 2-4 grams of EPA + DHA per day.
Other potential cardiovascular benefits of Omega-3s include lowering blood pressure and improving vascular tone. Studies of certain populations that consume more fish in their diets suggest that Omega-3s may also improve HDL, the body’s “good cholesterol.”
The American Heart Association now recommends the consumption of Omega-3 essential fatty acids for overall heart health, adding further that individuals with documented heart disease consume about 1 gram per day of EPA + DHA. Individuals with high triglycerides may benefit from higher doses of EPA and DHA. Supplementing one’s diet with an adequate amount of Omega-3s to promote cardiac health can be safely done with high-purity supplements free of environmental contaminants.
Dietary Supplementation with Omega-3 Products
Although the beneficial effects of Omega-3s are clear, there are several factors to consider in selecting a specific brand: fish contain heavy metals such as mercury and other toxins that should be avoided; some forms of omega-3 fatty acids are less purified and contain harmful saturated fats; there is a dramatic difference in the cost of omega-3s; there should be an optimal balance of both DHA and EPA.
Since some larger fish species may contain high levels of mercury, polychlorinated biphenyls (PCBs), dioxins or other contaminants, achieving an optimal amount of Omega-3s through the intake of fish alone raises a number of safety concerns. Omega-3 supplements that are certified free of environmental contaminants offer a safe way to obtain health-promoting benefits.
