Original sentence: Despite the fact that no scientific study has yet shown genetically modified food to be harmful to humans, a 2003 survey by the Pew Research Center found that a majority of people in all countries surveyed felt that GM foods were "bad"
Edited sentence: Despite the fact that no scientific study has yet shown genetically modified food to be harmful or harmless to humans, a 2003 survey by the Pew Research Center found that a majority of people in all countries surveyed felt that GM foods were "bad"