Again you see how comforting this immunity is by trying to imagine the reverse. And yet that it seems to me is what the opponents of agricultural biotechnology say we should be creating. There may be some human immune responses to genetically altered plants. Of the things to be afraid of, the human body reacting to an outside material it perceives as dangerous is not one. What would be absolutely frightening would be a plant which was potentially dangerous, but which did not activate the immune system.
Allergic reactions are nature's way.
And I personally am much more comfortable with having allergic reactions warn me about food than having to have faith that humans have created something which, unlike everything else in nature, is not a mixture of healthy and hurtful. We may create new and natural species. It is difficult to imagine that we are going to be more creative at creating things out of DNA than nature. If it can exist and is stable in species form then nature approves of sheep with human clotting factor in their milk or canola with flounder anti-freeze genes in their stems. But let me make my negative argument again.