the extent of my soy usage comes from soy sauce while eating sushi...
bench
A specific soy isoflavone decreases production of NGF(nerve growth factor), and that results in accelerated brain atrophy in the elderly. Whether this happens to youths who consume soy is unknown, but it is not worth risking it since once the cell is apoptotic, it is gone and not replaced.
Most of the isoflavones in soy are destroyed by the fermentation proces used to make teriyaki sauce, but this isoflavone seems to survive. I wouldn't recommend eating soy. Legumes were not made to be eaten. They don't want you to eat it. Therefore, they create tons of allergens and toxic compounds and protein to stop you from consuming. Soy creates isoflavones as a birth control to stop mammals from breeding and this increasng it's survival. That is why isoflavones have estrogen effects on the body.
SUCKMYMUSCLE