A review of Vitamin D insufficiency and its management: A lack of evidence and consensus persists

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Abstract

Vitamin D deficiency is the most common nutritional deficiency worldwide, however uncertainty persists regarding the benefits of Vitamin D supplementation. Vitamin D is essential for calcium homeostasis, and has been linked to falls and fractures in older people. There are numerous risk factors for Vitamin D deficiency, chief among them old age. Studies of Vitamin D supplementation have given mixed signals, but over all there is evidence of benefit for those with risk factors for deficiency. International guidelines recommend Vitamin D target levels of >25 to >80 nmol/l, best achieved by a daily dose of 800-1000 IU. Large bolus doses should be avoided. There are still unanswered questions regarding Vitamin D supplementation and target levels. There is need for well designed and powered trials to achieve consensus.

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Gorey, S., Canavan, M., Robinson, S., O’Keeffe, S. T., & Mulkerrin, E. (2019, March 1). A review of Vitamin D insufficiency and its management: A lack of evidence and consensus persists. QJM: An International Journal of Medicine . Oxford University Press. https://doi.org/10.1093/qjmed/hcy126

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