Vitamin D Supplementation May Not Be Effective in Bipolar Depression, But Is Still Worth Doing

January 27, 2017 · Posted in Potential Treatments 

vitamin DIn some studies, vitamin D supplementation (1,500 IU/day) has been found to improve unipolar depression. Recently, researchers led by Wendy K. Marsh found that compared to placebo, 12 weeks of vitamin D3 supplementation (5,000 IU/day) did not produce greater improvement in depressive symptoms. The study, presented at the 2016 meeting of the Society of Biological Psychiatry, included 33 adult participants whose vitamin D levels remained deficient throughout the study.

Editor’s Note: Caution is urged in interpreting this small study, especially because the participants did not achieve healthy levels of vitamin D.

Low levels of vitamin D are common in children and adults with bipolar disorder. Future research may explore whether raising vitamin D levels to healthy levels has a beneficial effect on mood. There are many other benefits to vitamin D supplementation. It can improve cognition, regulate calcium and phosphorus absorption, and maintain healthy bones and teeth. It may also protect against diseases such as cancer, type 1 diabetes, multiple sclerosis, rheumatoid arthritis, and Crohn’s disease. Improved cardiovascular health is also a possible benefit of vitamin D supplementation.   

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