There have been some recent Meta-Reviews of Scientific Research into the role of Fish Oils and Vitamin D in combating the symptoms of Depression and Bi-Polar Disorder. Researchers pooling the results of 10 randomized trials involving 329 patients found that omega-3 fatty acids (found in fish oil) improved depressive symptoms in patients with either bipolar disorder or major depression compared to placebo. It is of interest that countries whose populations consume the most amount of fish oil in their diets have lower rates of major depression and suicidal thinking.
In a study performed by Brigham and Women’s Hospital, Dept. of Psychiatry, Harvard Medical School, Researchers found that the Omega-3 fatty acid patient group had a significantly longer period of remission than the placebo group. In addition, for nearly every other outcome measure, the Omega-3 fatty acid group performed better than the placebo group. Omega3 fatty acids were well tolerated and improved the short-term course of illness in this study of patients with bipolar disorder.