I would not recommend eating soy as well, if you wish to eat soy, only use highly fermented, organic, non-GMO soy.

I would also like to add that what you say is partly confirmed by Dr. Natasha Campbell-Mcbride:

Also check out these two books:
Dr. Natasha Campbell-McBrides book:
https://www.amazon.com/Psychology-Syndrome-D-D-D-H-D-Schizophrenia/dp/0954852028/
She also gives youtube lectures.
Dr. Gundrys book:
https://www.amazon.com/Plant-Paradox-Dangers-Healthy-Disease/dp/006242713X/

So I would advice you to be very cautious regarding diet - I suggest everyone simply tries what works best for him oder her!