For a decade now, my team has published papers and book chapters that call for an end to high-dose vitamin D supplementation. Our research indicates that the low levels of vitamin D often identified in patients with chronic inflammatory disease may be a result, rather than a cause of the disease process (eg, the concept of “deficiency” is incorrect). These two large 2018 studies support an end to vitamin D supplementation:
Lead author: Alison Avenues, University of Aberdeen
This large meta-analysis published in the Lancet found vitamin D supplementation does not prevent fractures/falls, or have clinically meaningful effects on bone mineral density.
Paper highlight: “There is little justification to use vitamin D supplements to maintain or improve musculoskeletal health. This conclusion should be reflected in clinical guidelines”
First author: JoAnn Manson, Harvard University
This nationwide, randomized, placebo-controlled trial found that supplementation with vitamin D did not result in a lower incidence of invasive cancer or cardiovascular events than placebo.