Taking Kirkland Signature Omega-3 Fish Oil is a convenient, easy, natural way to support your heart health. State-of-the-art purification processes are used to remove mercury. The American Heart Association recommends that healthy Americans consume two servings of fatty fish per week, providing about 1,750-3,500 mg of DHA and EPA per week. This amount equals 250-500 mg of DHA and EPA per day.The omega-3 fatty acids EPA and DHA are found in fatty fish, like salmon, mackerel, anchovies and sardines. Alpha-linolenic acid (ALA) is another omega-3 fatty acid found in flax, canola, soy, perilla, and walnut oils. Our bodies can convert ALA into EPA and DHA, although the rate is low.Consuming the omega-3 fatty acids EPA and DHA helps support healthy heart muscle and blood vessels.