Synopsis

Source of validity: Scientific
Rating (out of 5): 4

Omega-3 fatty acids—particularly the long-chain varieties EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid), commonly found in fatty fish—have strong scientific evidence supporting their role in promoting arterial and overall cardiovascular health. Numerous large-scale epidemiological studies and randomized controlled trials have demonstrated that omega-3s can lower triglyceride levels, modestly reduce blood pressure, decrease platelet aggregation (which reduces clot formation), and exert anti-inflammatory effects within blood vessels. These actions collectively support healthier arterial function and may help prevent atherosclerosis (the buildup of plaque in the arteries).

Clinical guidelines from organizations such as the American Heart Association recommend the consumption of fish or omega-3 supplements for certain populations to reduce the risk of heart disease. However, while omega-3s consistently lower triglycerides and have favorable effects on some cardiovascular risk factors, evidence for a direct reduction in major cardiovascular events (like heart attack and stroke) is mixed. Some meta-analyses and large trials (such as the REDUCE-IT trial) have shown benefit in high-risk patients, while others have demonstrated more modest or neutral effects in the general population.

Overall, the scientific consensus supports the use of omega-3 fatty acids to help maintain healthy arteries, particularly by improving lipid profiles and reducing inflammation, with the strongest effects seen in individuals with elevated cardiovascular risk.

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Products containing omega-3 fatty acids

Nature's Sunshine Flax Seed Oil (With Lignans)