A recent article on the effect of vitamin D supplementation on fractures, falls and bone mineral density was published in the journal Lancet Diabetes Endocrinology by Bolland and colleagues (October 4, 2018). This research reviewed the available literature as part of a systematic review and meta-analysis. A systematic review is a research method used to thoroughly locate and synthesize all the information (evidence) related to a specific topic. A meta-analysis uses statistical tools to combine data from the studies included in the review to provide an overall finding. During the systematic review process, it is important that the researchers combine studies that are clinically and statistically similar. This research summarized and combined the results of 81 randomized controlled trials, in which more than 50,000 people were enrolled.

Osteoporosis Canada’s overall position statement in response to this study:

This study did not specifically address the vitamin D requirements of individuals with osteoporosis, those with risk factors for osteoporotic fractures, or those with risk factors for vitamin D deficiency. Vitamin D is needed for optimal calcium absorption from the gut, and plays an important role in calcium balance and bone mineralization. Osteoporosis Canada recommends that individuals with osteoporosis or with risk factors for fractures receive adequate vitamin D, as recommended at 800-2,000 IU per day. Read More.