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Studies have suggested that a deficit in polyunsaturated fatty acids of the Omega-3 group may predispose individuals to depression. Omega-3 supplements with high concentrations of EPA can help to reduce symptoms of depression among patients who fail to respond to an initial antidepressant treatment. A recent study used Omega-3 for eight weeks, at doses of 1050 mg of EPA and 150 mg of DHA each day. EPA was found to be effective among patients with unipolar depression unaccompanied by an anxiety disorder. Authors conclude that more research comparing omega-3s to conventional antidepressants is still needed to confirm its use in treatment. Centre hospitalier de l'Université de Montréal (2010, June 30). Treating depression with Omega-3: Encouraging results from largest clinical study. ScienceDaily.