What are examples of genes added that have caused reactions?
There has been one crop developed to date that was demonstrated to cause allergy as a result of genetic engineering, and that was a soybean genetically engineered about a decade ago now to contain a Brazil nut gene. The goal of adding the Brazil nut gene was to actually make the soybean better poultry feed, but of course some of those soybeans would end up in human foods too. And as it turned out, the protein that was added from Brazil nuts caused allergic reactions in Brazil nut allergic people, and a University of Nebraska scientist who looked at the soybean was able to document this phenomenon because he actually had in his laboratory freezer blood serum from people who were known to be allergic to Brazil nuts, and he was able to do some laboratory screens looking for what are called antibody-antigen reactions. And this scientist’s work was ultimately published in the New England Journal of Medicine, and it was the first time that a genetically engineered food was demonstrated actua
