Association with vitamin D levels and depressive symptoms.
Association with vitamin D levels and depressive symptoms. Nandi et al; Eur J Clin Nutr. 2009 Dec;63(12):1444-7; Bertone-Johnson et al; Nutr Rev 2009 Aug;67(8):481-92; Shipowick CD et al; Appl Nurs Res. 2009 Aug;22(3):221-5; Jorde R et al; J Intern Med 2008 Dec;264(6):599-609; Hoogendijk WJ et al; Arch Gen Psychiatry. 2008 May;65(5):508-12.
Several recent studies on Vitamin D suggest a link between decreased serum levels and the occurrence of depressive symptoms particularly in the winter months as both depressive symptoms and Vitamin D insufficiency are common during winter. The results of some of these studies suggests that supplemental vitamin D3 may ameliorate the symptoms of depressive symptoms therefore indicating a causal relationship.
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