Higher vitamin D dose needed for bone health benefits for older women: Study

"Our findings are in agreement with the conclusions that more than 400 IU a day may be required to improve bone health" - Macdonald et al. Vitamin D doses closer to 1,000 IU per day may be needed to lessen bone loss in postmenopausal women, says a new study from the UK.

http://www.nutraingredients.com/Research/Higher-vitamin-D-dose-needed-for-bone-health-benefits-for-older-women-Study?