Effect of four monthly oral vitamin D3 (cholecalciferol) supplementation on fractures and mortality in men and women living in the community: randomised double blind controlled trial.
Trivedi DP, Doll R, Khaw KT.
BMJ. 2003 Mar 1;326(7387):469.
PMID: 12609940
Conclusion: Four monthly supplementation with 100 000 IU oral vitamin D may prevent fractures without adverse effects in men and women living in the general community.
Fracture prevention with vitamin D supplementation: a meta-analysis of randomized controlled trials.
Bischoff-Ferrari HA, Willett WC, Wong JB, Giovannucci E, Dietrich T, Dawson-Hughes B.
JAMA. 2005 May 11;293(18):2257-64. Review.
PMID: 15886381
Conclusions Oral vitamin D supplementation between 700 to 800 IU/d appears to reduce the risk of hip and any nonvertebral fractures in ambulatory or institutionalized elderly persons. An oral vitamin D dose of 400 IU/d is not sufficient for fracture prevention.