Look at Prevacid's website or the CDC to know for sure
I don't know about the Prevacid, but you should have your testosterone checked. My husband fell in his early fifties, was a body builder and avid runner. When he fell he broke his back in 2 places. He was diagnosed with Osteoporosis, they started him on Testosterone shots (his was low), and within a fairly short amount of time, his bones were strong again. He has to take the shots for the rest of his life. Just like women lose estrogen with age, men lose testosterone which leads to osteoporosis in both sexes.
PPIs have been implicated in bone issues, unfortunately.
I had testosterone, parathyroid, etc checked and all were normal. The only thing I can link it to is the Prevacid. So far I cannot find anything helpful on the CDC web site, but I'm sorting through a lot of data.
Try this: http://ukhealthcare.uky.edu/publications/AI/general/index.htm