I'm embarrassed because I sent this to bfmed and no one replied! They must have thought it was a stupid question! please help clarify my understanding, in several sources (Lawrence, AAP physicians guide, Riordan) I have seen that Insulin as taken by a diabetic does not cross into breast milk, however, in some of these same sources, I have seen Insulin listed as one of the many peptide hormones that can be found in breast milk... now I also just read in a 2003 syllabus from Lisa Marasco's talk LLLI that prolactin, progesterone, estrogen, relaxin, and epidermal GF are SYNTHESIZED in the breast so, is it possible that insulin is synthesized in the breast or is the information regarding the drug insulin outdated based on previously used bovine insulin where as now humulin the the preferred injection, or is humulin a larger molecule (I can't remember my basic sience, wouldn't it be smaller? missing the c peptide?) *********************************************** To temporarily stop your subscription: set lactnet nomail To start it again: set lactnet mail (or digest) To unsubscribe: unsubscribe lactnet All commands go to [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(R) mailer for lightning fast mail delivery. For more information, go to: http://www.lsoft.com/LISTSERV-powered.html