Hey @alexander.alexis, ty for your comment!

About soy, I wrote already 3 posts (plus a german summary post) that I've linked in the beginning of this post, and I'm not planning on writing a fourth ;-)
Cumulative - or even worse, synergistic - effects are a potential problem, that's absolutely true. Also, it's the very field I am working on in my profession as a scientist. But sadly, little is known today about such combinatory effects. I will dedicate a post to it soon enough though, for it's the perfect topic to end my estrogenicity series.