15 mcg = 600 IU. 20 mcg = 800 IU ... The following examples include: 100 IU (2.5 mcg) per day increases vitamin D blood levels 1 ng/ml (2.5 nmol/L). 200 IU (5 mcg) per day increases vitamin ...
Higher depression risk was seen even with vitamin D insufficiency (20 to 30 ng/mL) versus normal levels (HR, 1.667). "These findings suggest that maintaining adequate vitamin D levels might be ...
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