Soy - based foods have a high estrogen content, and eating them can send your T - levels into freefall without a parachute. (testogen.com)
In order to INGEST estrogen content equivalent to that of 1 % of endogenous estrogens produced daily in an adult male, you would have to drink over 1 gallon of skim milk a day. (nutritionfacts.org)
During menopause, estradiol levels drop off, and the bulk of a woman's estrogen content becomes E1 and E3 (estriol). (paleoforwomen.com)