And do any of you have experience taking strontium citrate and/or strontium ranelate? Reading many conflicting reports on these two supplements, one of which says Europe took strontium ranelate off the market due to dangerous side effects; however a friend here in the US said she reversed her full-on osteoporosis taking str. citrate, with normal DEXA scans now. But a Google search says strontium replaces the calcium in the bones with itself, which isn't the same as healthy bones. Confusing!