As of 2015, foods that contain genetically modified organisms are considered safe by the World Health Organization, the National Academy of Sciences and the American Medical Association, states WebMD. However, no independent scientific studies have proven the safety of these foods, notes Non-GMO Project.
The Food and Drug Administration feels that GMO foods do not need regulation because they are close enough to the natural form of the food, according to WebMD. GMOs are created when DNA from one plant species is injected into another species in a laboratory, creating different combinations of animal, bacterial and viral genes, explains Non-GMO Project. Corn, soy and cotton are a few common genetically modified crops grown in the United States.