Current Osteoporosis Reports

, Volume 10, Issue 1, pp 4–15

Vitamin D in the New Millennium

Current Therapeutics (SL Silverman, Section Editor)

DOI: 10.1007/s11914-011-0094-8

Cite this article as:
Wimalawansa, S.J. Curr Osteoporos Rep (2012) 10: 4. doi:10.1007/s11914-011-0094-8

Abstract

The incidence of vitamin D deficiency is rising worldwide, yet in the vast majority of patients, the condition remains undiagnosed and untreated. Current evidence overwhelmingly indicates that supplemental doses greater than 800 IU/day have beneficial effects on the musculoskeletal system, improving skeletal homeostasis, thus leading to fewer falls and fractures. Evidence is also accumulating on the beneficial effects of vitamin D on extraskeletal systems, such as improving immune health, autoimmune disorders, cancer, neuromodulation, diabetes, and metabolic syndrome. The cause-effect relationship of vitamin D deficiency with increasing incidences of nonskeletal disorders is being investigated. Published reports support the definition of sufficiency, serum levels of 25-hydroxyvitamin D [25(OH)D] greater than 30 ng/mL (75 nmol/L). To achieve this, most people need vitamin D supplementation ranging from 600 to 2000 IU/day; consumption up to of 5000 international units (IU) per day of vitamin D is reported as safe. Although light-skinned individuals need 1000 IU/day of vitamin D, elderly and dark-skinned individuals are likely to need approximately 2000 IU/day to maintain serum 25(OH)D levels greater than 30 ng/mL. Other vulnerable patients, such as the obese, those who have undergone bariatric surgery, and those with gastrointestinal malabsorption syndromes, may require higher doses of vitamin D to maintain normal serum levels and be healthy.

Keywords

Bone mineral density (BMD)FracturesOsteoporosisRicketsSupplementsSyndromeOsteomalaciaVitamin D

Copyright information

© Springer Science+Business Media, LLC 2012

Authors and Affiliations

  1. 1.Physiology & Integrative Biology, Endocrinology, Metabolism & NutritionUMDNJ–Robert Wood Johnson Medical SchoolNew BrunswickUSA
  2. 2.Regional Osteoporosis Center, MEB-372, Division of EndocrinologyRobert Wood Johnson Medical SchoolNew BrunswickUSA