Silver Book Fact
A systematic review of osteoporosis therapies found good evidence that many are effective in preventing fractures, but concluded that the data are insufficient to determine if any one therapy is better than the others.
MacLean C, Newberry S, Maglione M, McMahon M, et al. Systematic Review: Comparative effectiveness of treatments to prevent fractures in men and women with low bone density or osteoporosis. Annals of Internal Medicine. 2008; 148(3): 186-96. http://www.ncbi.nlm.nih.gov/pubmed/18087050