Vitamin D deficiency and psychiatric illness: evidence-based review
Supplementation might help patients with depression, seasonal mood disturbances
Current Psychiatry Vol. 12, No. 04 / April 2013
Herbert W. Harris, MD, PhD; Medical Director, Rho, Chapel Hill, NC
Pranay Jaiswal, MD; Research Coordinator, Duke University School of Medicine, Durham, NC
Valerie Holmes, MD; Consulting Associate Professor of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC
Richard H. Weisler, MD; Adjunct Professor of Psychiatry, University of North Carolina School of Medicine, Chapel Hill, NC, Adjunct Associate Professor of Psychiatry and Behavioral Sciences, Duke University, Durham, NC
Ashwin A. Patkar, MD, MRCPsych; Associate Professor, Duke University School of Medicine, Durham, NC
PDF is attached at the bottom of this page
The PDF includes reference to 2 Random Controlled Trials
Both trials used used only 40,000 IU weekly,
One trial found a benefit, the other did not.
Note: one trial used obese subjects – those would need much more vitamin D to raise the blood level.