Treatment of depression with omega3 – encouraging results from largest clinical study

The study was published in the online Journal of Clinical Psychiatry.This was the largest study ever conducted assessing Omega-3’s efficacy in treating major depression. It was carried out in conjunction with researchers from centres affiliated with the UdM’s Réseau universitaire intégré de santé (RUIS), from McGill University, Université Laval in Quebec City and Queen’s University in Kingston, Ontario. The study was supported by the European the Fondation du CHUM and the CRCHUM.

Initial analyses failed to clearly demonstrate the effectiveness of Omega-3 for all patients taking part in the study. Other analyses, however, revealed that Omega-3 improved depression symptoms in patients diagnosed with depression unaccompanied by an anxiety disorder. Efficacy for these patients was comparable to that generally observed with conventional antidepressant treatment.From October 2005 to January 2009, 432 male and female participants with major unipolar depression were recruited to take part in this randomized, double-blind study (neither patients nor researchers knew which capsules patients received). For eight weeks, half of the participants took three capsules per day of a fish oil supplement containing high concentrations of eicosapentaenoic acid (EPA). The other half took three identical capsules of a placebo consisting of sunflower oil, flavoured with a small quantity of fish oil. In contrast with typical clinical studies designed to assess the effectiveness of antidepressants, this study included a high proportion of patients with complex and difficult-to-treat conditions, including patients resistant to conventional antidepressant treatments and patients also suffering from an anxiety disorder. The aim was to assess the value of Omega-3 supplementation in a group of individuals more like those treated in outpatient clinics.Some 11% of men and 16% of women in Canada will suffer from major depression at some point in their lives, making this disorder one of our society’s leading public health issues. Depression, which is now the world’s fourth leading cause of morbidity and death is expected to move up to the number two position by 2020. “Despite significant progress in neuroscience over the past two decades, depression is difficult to treat,” Dr. Lespérance noted. In view of the large number of patients who stop taking their medications in the first few months of treatment and those who refuse such treatment due to fear of stigmatization or side effects, it comes as no surprise that a large number of patients suffering from major depression use alternative treatments offered outside the healthcare system. “Many of these treatments have not been adequately evaluated. That is why it was important to assess the efficacy of Omega-3, one of the most popular alternative approaches,” he added.It is important to note that the study assessed use of Omega-3 for eight weeks, at doses of 1050 mg of EPA and 150 mg of DHA each day. It is currently unknown whether taking higher doses or taking supplements over a longer period would yield different results.

Related posts:

  1. Depression study confirms effectiveness of EPA as anti depressant treatment
  2. Omega3 fish oil EPA as effective as Prozac in the treatment of medium to major depression
  3. Long-Chain Omega-3 Fatty Acid Deficiency in Mood Disorders: Rationale for Treatment and Prevention.
  4. High omega3 fish oil EPA formulation shows a decrease in Major Depressive Disorder when augmenting treatment with Citalopram
  5. Meta-analysis of the effects of omega 3 fish oil eicosapentaenoic acid (EPA) in clinical trials in depression.

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