Quoted:
When I was in college there was an "insect pest management" class and they talked about a serving of soy milk has about 1/3 of estrogen as a birth control pill.

Quoted:
do you know of any other foods that do that?

Female Hormones Found in Beer

Yesterday, scientists for Health Canada suggested that men should take a close look at their beer consumption, considering the results of a recent analysis that revealed the presence of female hormones in beer. The theory is that drinking beer makes men turn into women. To test the finding 100 men were fed 6 pints of beer each. It was then observed that 100% of the men gained weight, talked excessively without making sense, became overly emotional, couldn't drive, failed to think rationally, argued over nothing, and refused to apologize when wrong. No further testing is planned.