References for “Do we really need all that calcium?”
Bischoff-Ferrari HA, et al. "Calcium intake and hip fracture risk in men and women: a meta-analysis of prospective cohort studies and randomized controlled trials," American Journal of Clinical Nutrition (2007), Vol. 86, pp. 1780-90.
Jackson RD, et al. "Calcium plus vitamin D supplementation and the risk of fractures," New England Journal of Medicine (Feb. 16, 2006), Vol. 354, No. 7, pp. 669-683.