Generally speaking, when genetically modified foods enter the digestive organs of human body, protein (polymerized from amino acid molecules) will be decomposed into amino acid molecules, and DNA (polymerized from nucleotide molecules) will be decomposed into nucleotide molecules. These amino acids and nucleotides are not different from those decomposed by non-genetically modified foods, so genetically modified foods do not pose any harm to human safety from this perspective.

The problem is that once the DNA of genetically modified food is not completely decomposed in our digestive organs, some DNA fragments of genetically modified food may enter human cells, and may even be embedded in the DNA of human cells, which is equivalent to transgenic human cells, and its harm is incalculable.