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Vitamin K and fractures

This article was originally published in The Tan Sheet

Executive Summary

Oral supplementation with vitamin K (phytonadione and menaquinone), especially vitamin K2 (menaquinone-4), is linked to increased bone mineral density and reduced fractures, according to a systematic review and meta-analysis published in the Archives of Internal Medicine June 26. The meta-analysis assess data from seven randomized controlled trials and found a "striking" 80% reduction in hip fractures with vitamin K supplementation, Sarah Cockayne, University of York, England, et al., state. "Our findings should be treated cautiously, however, because the studies were not primarily designed to show a fracture effect," they explain. The results of the meta-analysis and review suggest that people susceptible to fracture should eat a diet that is rich in vitamin K, "which is chiefly obtained from green leafy vegetables and certain vegetable oils," the study authors say...

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