Intestinal calcium absorption is associated with bone mass in stone-forming women with idiopathic hypercalciuria.

Background: Patients with idiopathic hypercalciuria are predisposed to osteoporosis despite their high enteral calcium absorption. Conversely, low calcium absorption has been reported in patients with osteoporosis. Because bone loss occurs earlier in women, this work explores the relationship between bone mineral density (BMD) and calcium absorption in premenopausal and postmenopausal hypercalciuric stone-forming women.