More than 31,000 subjects 65 years old and older were followed in a study published in the New England Journal of Medicine.
Authors found high doses of Vitamin D supplements 800 or more international units a day seemed to be useful against fractures.
They report a 30 percent reduction in hip fractures and a 14 percent reduction in non-vertebral fractures.
More than 90 percent of the people studied in this report were women.
