Links to Additional Information:

Calcium: Oregon State Univ, Linus Pauling Institute   (http://lpi.oregonstate.edu/infocenter/minerals/calcium/index.html)

Vitamin D: Wikipedia (http://en.wikipedia.org/wiki/Vitamin_D)

Osteoporosis: (www.nlm.nih.gov/medlineplus/osteoporosis.html)

Guidelines for osteoporosis in celiac disease and inflammatory bowel disease: (www.pubmedcentral.nih.gov/articlerender.fcgi?artid=1766735)