Re osteoporosis (WDDTY vol 16 no 5, page 12), boron (as Osteo-Trace) has been used for years for both arthritis and osteoporosis - and without side-effects.
Currently, most screening systems measure bone mineral density (BMD). Susan Ott, associate professor at the University of Washington in Seattle, has warned of high levels of imprecision in screening systems and multiple measurement techniques