Vitamin D and depressive symptoms in women during the winter: a pilot study.
Shipowick CD, Moore CB, Corbett C, Bindler R.
Appl Nurs Res. 2009 Aug;22(3):221-5.
PMID: 19616172
doi:10.1016/j.apnr.2007.08.001
ESULTS: Vitamin D supplementation was associated not only with an increase in the serum D levels by an average of 27 ng/ml but also with a decline in the BDI-II scores of an average of 10 points. DISCUSSION: This study suggests that supplemental vitamin D3 reduces depressive symptoms.