A study on animals shows that supplementation of probiotics improves bone density:

“We know that inflammation in the gut can cause bone loss, though it’s unclear exactly why,” study researcher Laura McCabe, a professor at Michigan State University, said in a statement. “The neat thing we found is that a probiotic can enhance bone density.”

Read the full article here: Probiotics Improve Bone Density In Animal Study

Thanks to Cindy for forwarding this article to me.