The LINKAGES Project has a publication that covers information about the gastrointestinal tract well. A .pdf file format download can be found at <http://www.linkagesproject.org/publications/index.php?series=7>. The title of the report is *Developmental Readiness of Normal Full Term Infants to Progress from Exclusive Breastfeeding to the Introduction of Complementary Foods: Reviews of the Relevant Literature.* The language may be a little bit difficult, but it is fairly easy to read. *********************************************** 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