Vitamin D deficiency has been implicated in numerous health conditions in recent years, including depressed mood and major depressive disorder. Recent observational studies provide some support for an association of vitamin D levels with depression, but the data do not indicate whether vitamin D deficiency causes depression or vice versa. These studies also do not examine whether vitamin D supplementation improves depression.
Vitamin D supplementation improves depression?.
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A systematic review of clinical trials that have examined the effect of vitamin D supplementation on depression found that few well-conducted trials of vitamin D supplementation for depression have been published and that the majority of these show little to no effect of vitamin D on depression. The review, by Jonathan A. Shaffer, PhD, assistant professor of medical sciences at Columbia University Medical Center (CUMC), and colleagues at CUMC’s Center for Cardiovascular Behavioral Health, was published recently in the online edition of Psychosomatic Medicine.
Read More: http://www.sciencedaily.com/releases/2014/03/140318185829.htm