Lawrence Breastfeeding: A guide for the medical profession has very comprehensive guidelines for assessing BM intake v/s formula in this case. If you don't have access to this text I can copy out the relevant section. Meg Kingsley Lay Breastfeeding Supporter, Dubai UAE E-Mail : [log in to unmask] *********************************************** 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