Vitamin D intake to attain a desired serum 25-hydroxyvitamin D concentration.


BACKGROUND Indirect evidence suggests that optimal vitamin D status is achieved with a serum 25-hydroxyvitamin D [25(OH)D] concentration >75 nmol/L. OBJECTIVE We aimed to determine the intake of vitamin D(3) needed to raise serum 25(OH)D to >75 nmol/L. DESIGN The design was a 6-mo, prospective, randomized, double-blinded, double-dummy, placebo… (More)


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