The problem with concluding that GMOs are safe is that the argument for their safety rests solely on animal studies. These studies are offered as evidence that the debate over GMOs is over. Nothing could be farther from the truth.
Animal studies have value in that if something demonstrates harm in animals, it will also likely cause harm in humans. Although some animal studies have found harmfrom a GMO diet, these hotly debated studies are not the point of this article. The point is, if an animal study does not find harm with a particular substance, it could still cause harm in humans.