Pat, Good point: <One question that comes to my mind is: how do we really know what prolactin levels would be in a woman who is fully BF, ad lib at 4-6 mo, before solids are added. I'd bet a nickle tests weren't originally done on fully BF women ! By 120 days many women were probably "weaning". > Nor do we know whether they were drawn in early a.m. or afternoon, with the mom fasting, or recently having eaten, or at what time period after the previous nursing. Lots of variables, as I quoted from the reference I posted about prolactin earlier this week. Jean ***************** K. Jean Cotterman RNC, IBCLC Dayton, Ohio USA *********************************************** 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