Daily supplementation with 15 mu g vitamin D-2 compared with vitamin D-3 to increase wintertime 25-hydroxyvitamin D status in healthy South Asian and white European women: a 12-wk randomized, placebo-controlled food-fortification trial

摘要

Background: There are conflicting views in the literature as to whether vitamin D-2 and vitamin D-3 are equally effective in increasing and maintaining serum concentrations of 25-hydroxyvitamin D [25(OH) D], particularly at lower doses of vitamin D.