Adding zinc is a good idea IF the toxin is actually bufotenine N-oxide.

SWIM wants to know for sure what bufotenine N-oxide is like. The only way to know for sure is to isolate the bufotenine and then convert it to bufotenine N-oxide using hydrogen peroxide. That way you know for sure what you have is bufotenine N-oxide and not some other toxin. If bufotenine N-oxide gives the same effects as the toxin in the seeds, then you know for sure what that crap is. Doing it the other way around, you still don't really know. I mean if you added zinc and it "fixed" it, you still don't really know what it did for sure.