This is formally a negative study, suggesting that there is no benefit for omega-3 fatty acids over placebo in treating PND. The reason could be that the study was underpowered due to recruitment difficulties and therefore we suggest that it may be unwise to interpret this result as conclusive. Omega-3 is a natural product that is a safe and well-tolerated treatment. Further research is therefore needed in this area to establish whether omega-3 fatty acids are an effective treatment for PND.

Deficits in omega-3 fatty acids have been identified as a contributing factor to mood disorders and offer a potential rational treatment approach. This review identifies a number of hypotheses and studies for consideration. In particular, the authors argue for studies clarifying the efficacy of omega-3 supplementation for unipolar and bipolar depressive disorders, both as individual and augmentation treatment strategies, and for studies pursuing which omega-3 fatty acid, eicosapentaenoic acid (EPA) or docosahexaenoic acid (DHA), is likely to provide the greatest benefit.

No abstract