Chance findings?
Based on the current study and in light of prior research, “it is premature to recommend vitamin D supplementation for cardiovascular disease prevention specifically,” Nour Makarem, PhD, of the Mailman School of Public Health, Columbia University, New York, said in an interview.
“Prior clinical trials did not show an association between vitamin D supplementation and cardiovascular events,” observed Dr. Makarem, who is not affiliated with the current study. Also, she agreed, it looked at “multiple outcomes, which increases the likelihood that findings may be due to chance.”
She added that the study’s authors observed a possible vitamin-D protective effect “among people who were vitamin D sufficient at baseline but not among those who were insufficient. It is important to interpret this finding with caution because they used predicted, not measured, vitamin D status for these analyses.”
There’s a need for studies in other populations, including younger persons and “particularly populations with higher rates of vitamin D deficiency,” Dr. Makarem observed. Also, further research should aim to “understand the interactions between vitamin D supplementation and cardiovascular medications, including statins.”
The D-Health Trial is funded by National Health and Medical Research Council project grants. Dr. Neale was supported by fellowships from the NHMRC. Neither she nor Dr. Makarem reported any relevant financial relationships.
A version of this article first appeared on Medscape.com.