I've had Reclast infusions 2x (about 2 years apart) for minor osteoporosis and the Dexa scans did show minor increase in bone density. A friend takes Reclast pills for severe osteoporosis, which helps but had the side effect that she lost smell and taste. It isn't without side effects, so check those before considering it. Resistance weight training and other weight bearing exercise is good for bone/muscle growth as well.