fruit and veg are fine !

I know there are loads of arguments about whether GM stuff is doomsday or saviour material.
I just have one
niggling doubt.....
GM is done by insertion of a gene that makes a protein or organic compound that does something.
These compounds can and do come from poisonous organisms [I suspect- cos they do come from esoteric flora/fauna]. I'd be all for GM if the genes came from an organism that humans were known to eat without keeling over.