Kuo says that this process may have unforeseen side effects; for example, if during this, new allergy-causing proteins or new toxins are produced.

“The genetic engineering procedure, and this includes gene editing, has the potential to damage DNA,” said molecular geneticist Dr. Michael Antoniou, head of the Gene Expression and Therapy Group at King’s College London, in an interview in April 2022. “If you alter gene function, you automatically alter the biochemistry of the plant … included within that altered biochemistry can be the production of novel toxins and allergens … that is my main concern.”