date:Jun 01, 2012
on the study, vitamin D expert Professor Heike Bischoff-Ferrari told NutraIngredients that the reported increased risk of mortality at the high vitamin D serum levels of levels of 140 nanomol (nmol) of 25(OH)D per litre of plasmais a concern but also raises the question who is reaching such high levels.
In order to reach serum concentrations of about 140 nmol/l a significant dose of vitamin D is needed, far higher than current recommendations,she explained adding that recent research has sugge