Barbara, "In a recent study; calcium citrate yielded 2.5 times greater absorption than the calcium carbonate form." I cut this out of an article about 1 year ago and saved it for myself. I don't remember where it originated from though. Maybe some of the dieticians can help with this. Donna Goggin-Dolwick, RN, BSN, LCCE *********************************************** The LACTNET mailing list is powered by L-Soft's renowned LISTSERV(R) list management software together with L-Soft's LSMTP(TM) mailer for lightning fast mail delivery. For more information, go to: http://www.lsoft.com/LISTSERV-powered.html