There were 2 small studies using strontium citrate along with other micronutrients. One from Canada was the COMB study the other was from Duquesne University in the US which was more detailed in that they looked at the bone composition. They both showed reduced fractures and bone strengthening similar to Fosamax. I thing it was called the Mots study. I used the recommendations from both , in part, and I reversed my osteoporosis to osteopenia while taking prednisone. I plan to continue. Calcium
was dietary.