Paper in JAMA:;http://archinte.jamanetwork.com/article.aspx?articleid=2478897 Concluaion: “Conclusions and Relevance;;Although higher monthly doses of vitamin D were effective in reaching a threshold of at least 30 ng/mL of 25-hydroxyvitamin D they had no benefit on lower extremity function and were associated with increased risk of falls compared with 24 000 IU.”