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Originally Posted by Thor
YEAH, Take Vitamin D, no need to understand biology and how that dry pill is absorbed into your body...
Who cares if most of it is wasted and goes out your urine.
FACTS ARE USELESS.
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Not sure what you're ranting about. Studies show their may be a link between vitamin D and S.A.D., and that supplementation may help with other health problems as well.
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Cross-sectional studies have identified associations between depression and low vitamin D levels, but studies have failed to clarify whether vitamin D deficiency is an antecedent cause, correlate or consequence of depression.
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From: 'D' for depression: any role for vitamin D? 'Food for Thought' II. [Review] Acta Psychiatrica Scandinavica. 124(4):243-9, 2011 Oct. Parker, G. Brotchie, H.
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Recent findings from a randomized trial suggest that high doses of supplemental vitamin D may improve mild depressive symptoms, but important questions persist concerning how vitamin D may affect monoamine function and hypothalamic-pituitary-adrenal axis response to stress, whether vitamin D supplementation can improve mood in individuals with moderate-to-severe depression, and whether vitamin D sufficiency is protective against incident depression and recurrence.
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From: Vitamin D and the occurrence of depression: causal association or circumstantial evidence?. [Review] [70 refs]. Nutrition Reviews. 67(8):481-92, 2009 Aug..Bertone-Johnson, Elizabeth R.
So you'd be right if you're alluding to evidence not being conclusive, but you seem to be discounting any evidence on the link?
Also, vitamin D3 is fat soluble. You don't just pee it out.