[nickcarraway]

Soy has estrogen, no thanks.

I take it you don't eat meat, then? And that you are a plant?

Anyway, natto is a traditionally fermented food, so there would be no such issues anyway.

[EEGator]

Do different foods help lower and raise blood levels of estrogen?

Which raise and which lower?

The ratio in males for Testosterone to estrogen is important.