We aimed to evaluate the potential effects of a new vitamin D3 analog, Eldecalcitol and BPs on minimodeling in humans using surgical specimens. We found that minimodeling is readily observed in the humans. We found that patients who had been treated with Eldecalcitol prior to surgery tend to have increased minimodeling activity. Our data indicate that Eldecalcitol can activate minimodeling in patients with post-menopausal osteoporosis while bisphosphonates have negative or little impact on this form of bone formation.