I don't have an answer for you. I can tell you that for the first time, my dexa score improved. The report said, "significant increase in bone mineral density in hip". Not the neck or the spine, but I'll take it! I still have osteopenia. I walk regularly, and take yoga classes regularly. My yoga teacher has us hold the warrior poses "to stimulate bone growth and density". I don't know that she knows what she's talking about, but I do it. I also take D3. And for the last year and a half I've been taking a quality collagen product. I'll be interested to hear what your doc recommends.