The website promom.org has a "101 Reasons to Breastfeed Your Child" list. What I like most about it is that it's well referenced. Reason #6 says, "Formula feeding increases baby girls' risk of developing breast cancer in later life. Women who were formula-fed as infants have higher rates of breast cancer as adults. For both premenopausal and postmenopausal breast cancer, women who were breastfed as children, even if only for a short time, had a 25% lower risk of developing breast cancer than women who were bottle-fed as infants. Freudenheim, J. et al. 1994 "Exposure to breast milk in infancy and the risk of breast cancer". Epidemiology 5:324-331." Maybe this is the citation you are looking for? Best regards, Michelle Roth, BA, LCCE, CIMI, La Leche League Leader, mom of 4 *********************************************** Archives: http://community.lsoft.com/archives/LACTNET.html To reach list owners: [log in to unmask] Mail all list management commands to: [log in to unmask] COMMANDS: 1. To temporarily stop your subscription write in the body of an email: set lactnet nomail 2. To start it again: set lactnet mail 3. To unsubscribe: unsubscribe lactnet 4. To get a comprehensive list of rules and directions: get lactnet welcome