MedicalResearch.com Interview with:
Robert Scragg, MBBS, PhD
School of Population Health
The University of Auckland
Auckland New Zealand
MedicalResearch.com: What is the background for this study? What are the main findings?
Response: Interest in a possible role for vitamin D deficiency as a risk factor for cardiovascular disease was stimulated by studies showing a seasonal variation in cardiovascular disease, which is much higher in winter, when body levels of vitamin D are low, than in summer.
Main findings are that bolus monthly doses of vitamin D supplementation do not prevent against cardiovascular disease, even in people with low levels of vitamin D.
MedicalResearch.com: What should readers take away from your report?
Response: That monthly doses of vitamin D do not prevent against cardiovascular disease.
MedicalResearch.com: What recommendations do you have for future research as a result of this study?
Response: We don’t know whether or not daily doses prevent against cardiovascular disease. We will have to await the results of other large clinical trials currently underway which are giving daily doses. However, these will not report their findings for 2-3 years.
MedicalResearch.com: Thank you for your contribution to the MedicalResearch.com community.
Scragg R, Stewart AW, Waayer D, et al. Effect of monthly high-dose vitamin D supplementation on cardiovascular disease in the Vitamin D Assessment Study : A randomized Clinical trial [published online April 5, 2017] JAMA Cardiol. doi: 10.1001/jamacardio.2017.0175Robert Scragg MBBS, PhD, Alistair W. Stewart BSc, Debbie Waayer MEd, Carlene M. M. Lawes MBChB, PhD, Les Toop MBChB, MD, John Sluyter PhD, Judy Murphy RN, Kay-Tee Khaw MBBChir, MSc, Carlos A. Camargo MD, DrPH
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