No, that's not true. I've been reading that it's not as good for us as was once thought, but toxic? No........
Soy inhibits the absorption of thyroid medications.
I have been told by people that soy is "toxic"
Soy is found in a lot of processed foods; that's why it's best to eat fresh as much as you can.
Just ate a sandwich and looked on the ingredients and found "soy". Cant get away from it LOL!
For the most part, soy should be avoided by those on thyroid replacement medication, since it can inhibit the absorption of the medication.
Small amounts, periodically, and separated from thyroid medication by several hours, should not be a real big issue.