Most Read Articles
01 Mar 2015
Red yeast rice extracts have been used in traditional medicine for centuries.1 In recent times, an extract from red yeast rice, Xuezhikang® (XZK), has been studied for its role in dyslipidaemia and cardiovascular disease. This review will look at some of the clinical trials that have done so.
13 Jun 2017
Both haemorrhagic and ischaemic stroke patients benefit similarly from a conventional therapy combined with robotic-assisted gait training (RAGT) intervention regimen, a new study shows.
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Perindopril can protect patients with paroxysmal atrial fibrillation (AF) from recurrence after radiofrequency catheter ablation, as stated in a study.
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Enriching salt with both potassium and magnesium in the long term may provide additional benefits for stroke patient recovery from neurologic deficits, suggests a recent study involving Taiwanese patients.

Effects of vitamin D supplementation on nonskeletal outcomes

13 Jul 2017

There has been no evidence to support the causal link between vitamin D supplementation and risk of nonskeletal diseases such as cardiovascular diseases (CVDs), type 2 diabetes (T2D) or malignancies, a new systematic review of meta-analyses shows.

Analysis of seven meta-analyses (21 randomized controlled trials [RCTs]) and three systematic reviews on vitamin D levels and CVD risk showed no harmful or beneficial effects of vitamin D on risks of CV events, myocardial infarction, CV death or stroke or cerebrovascular diseases.

Only two of nine meta-analyses (four RCTs each) and eight of 59 individual RCTs reported significant declines in systolic blood pressure (SBP) and no effect on diastolic blood pressure (DBP) following vitamin D supplementation. In contrast, one meta-analysis reported higher SBP in obese adults after vitamin D supplementation.

Eight systematic reviews investigated the effects of vitamin D on cancer risk, of which only five were formal meta-analyses. While the reviews included support no causal link between cancer and vitamin D, it should be noted that most RCTs were in samples without low 25OHD levels and have had short intervention duration, which may have affected the outcomes.

Of the four meta-analyses on vitamin D and depression, only one supported a significant beneficial link. However, the remaining three meta-analyses included more RCTs and the methods employed in each RCT showed a high degree of heterogeneity. A low vitamin D level at baseline was also not an inclusion criteria in most RCTs included.

RCTs, systematic reviews and meta-analyses investigating the effects of vitamin D supplementation on non-skeletal outcomes were searched from PubMed, the Cochrane Library and Embase. The qualities of the selected meta-analyses were mostly fair to good, according to the AMSTAR quality measurement tool.

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Most Read Articles
01 Mar 2015
Red yeast rice extracts have been used in traditional medicine for centuries.1 In recent times, an extract from red yeast rice, Xuezhikang® (XZK), has been studied for its role in dyslipidaemia and cardiovascular disease. This review will look at some of the clinical trials that have done so.
13 Jun 2017
Both haemorrhagic and ischaemic stroke patients benefit similarly from a conventional therapy combined with robotic-assisted gait training (RAGT) intervention regimen, a new study shows.
30 Jun 2016
Perindopril can protect patients with paroxysmal atrial fibrillation (AF) from recurrence after radiofrequency catheter ablation, as stated in a study.
6 days ago
Enriching salt with both potassium and magnesium in the long term may provide additional benefits for stroke patient recovery from neurologic deficits, suggests a recent study involving Taiwanese patients.