Despite the fact that food - regulating agencies require companies to report whether altered food contains any problem proteins, some researchers fear that unknown allergens could slip through the system.
Meski departemen kesehatan mewajibkan perusahaan - perusahaan melaporkan adanya protein penyebab alergi dalam makanan transgenik, beberapa peneliti mengkhawatirkan bahwa senyawa tak dikenal penyebab alergi dapat lolos deteksi.