Well,
that was goofy. You could do that with any food. Brocoli has cancer causing insecticides and fungicides (and more). Brocoli is also good for you. Your body can handle many carcinogens and poisons. It's the same thing with soy. The level of hormones in soy is neither large enough, or potent enough, to cause breast growth without a preexisting condition. Put it this way, are Asian women famous for being well enowed in the chest area? You are appear to be confusing a minute statistical probability for causation.