Hello ladies
BeaR - there are are at least two vegan supporting people commenting online. Mic the Vegan is one, plus Dr Neal Barnard. I think that one way the liver regulates oestrogen is by sending any excess into the colon where it binds to fibre and is excreted. Problems occur when there is insufficient fibre and oestrogen lingers in the colon and is reabsorbed thereby raising levels.
The main source of consumed hormones is in meat and dairy. We have bred cows that are capable of lactating whilst pregnant, something Mother Nature would never normally allow.
Take care ladies.
K.