Harvard Health Blog

The complicated relationship between fish oil and heart health

By: Alyson Kelley-Hedgepeth, MD, Contributor For nearly two decades, the American Heart Association (AHA) has recommended that people with coronary heart disease (CHD) consume omega-3-fatty acids (the kinds of fatty acids found in fish and fish oil) to prevent another heart attack. This recommendation was based on early randomized, controlled trials, which found that fish oil supplementation was associated with lower rates of stroke, heart attack, and death in people who already had heart disease.…

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