Outcome
    Moderate Evidence

    Vitamin D for Bone Mineral Density

    Vitamin D with adequate calcium reduces fracture risk in deficient and institutionalized older adults. In already-replete community-dwelling adults, large trials (VITAL) showed no BMD benefit — test and correct, do not megadose.

    Overview

    How It Works

    Dosing & Protocol

    Dosing aimed at bone mineral density

    SituationVitamin DTargetNotes
    Maintenance in sufficient adults800-1,000 IU D3 daily20-30 ng/mLFood-based calcium alongside
    Confirmed deficiency1,000-4,000 IU D3 daily (clinician-guided)30-50 ng/mLRe-test after 3-4 months
    Malabsorption conditionsOften higher; supervised30-50 ng/mLTreat the underlying cause; levels monitored

    Evidence

    Effects of vitamin D supplements on bone mineral density: a systematic review and meta-analysis

    Score: 9/10
    2014
    meta_analysis

    Vitamin D supplementation had no clinically meaningful effect on bone mineral density at most sites.

    View source

    Bones of contention: bone mineral density recovery in celiac disease - a systematic review

    Score: 6/10
    2015
    systematic_review
    n=1000

    Grace-Farfaglia P

    Calcium and vitamin D repletion supports but does not replace gluten-free adherence for bone recovery.

    View source

    Safety

    Interactions & Conflicts

    Interactions to know

    Interacts withSeverityMechanismAction

    References

    Frequently Asked Questions

    Medical Disclaimer

    The information provided on this website is for educational and informational purposes only and is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition or before starting any supplement regimen.

    Individual results may vary. The statements on this website have not been evaluated by the Food and Drug Administration. Products and information are not intended to diagnose, treat, cure, or prevent any disease.