>The new studies, however, suggest that bottle-feeding might also
contribute to the early onset of menstruation."

Several comments:
(1)  It's specifically LACK OF BREASTFEEDING, rather than bottle-feeding
that "might also contribute"
(2)  Earlier age at menarche is detectable whenever nutrition and health
improves, even in the absence of a switch from breastfeeding to
bottle-feeding with formula
(3)  The original post that began this discussion was whether HORMONES in
BEEF (and later CHICKEN) could contribute to earlier menarche, as opposed
to simply more protein in the diet





----------------------------------------------------------------------------
-------
Katherine A. Dettwyler, Ph.D.                         email:
[log in to unmask]
Anthropology Department                               phone: (409) 845-5256
Texas A&M University                                    fax: (409) 845-4070
College Station, TX  77843-4352
http://www.prairienet.org/laleche/dettwyler.html