Recent Randomized Controlled Trials
Several other vitamin D RCTs reporting data on glucose
metabolism have been published after the 2 above mentioned
meta-analyses finished their systematic review at
the beginning of 2011 [71–76, 77•, 78–89]. The number
of available RCTs has approximately doubled since
then, which underlines the importance of our review
(see the Table 1 for RCTs published in 2011 and
2012). These recent RCTs will be summarized and discussed
below, stratified according to studies performed
in (i) general populations, (ii) in patients with obesity or
at risk of diabetes, and (iii) in patients with type 2
diabetes.