I felt sufficiently concerned after a bit of searching to re post this here in case you do not visit articles of interest.
I have no answers as to whether the levels of hormones progestrone and 17beta oestradoil are sufficiently high to be of concern in humans or more specifically here to those with BC.
I simply do not have the knowledge.
It appears cattle are pelleted with hormones for production reasons.
RB
http://www.her2support.org/vbulletin...ad.php?t=24710