Evidence reveals vitamin D benefits are lacking

The research included a ‘futility’ analysis, suggesting continuing several large ongoing trials will not change the balance of the evidence.

Several types of meta-analyses were carried out on data from 40 randomised controlled trials, finding that supplementation with vitamin D, with or without calcium, does not change skeletal or non-skeletal outcomes by 15% or more, the researchers said.

Lancet Diabetes Endocrinol 2014; online 24 Jan

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