We all have our likes and dislikes when it comes to food, but a recent survey has revealed the most hated foods in each region of the U.S. YouGov asked Americans which foods they really hate, and based on their responses developed a list of 40 foods that Americans hate the most. At the top of the list of the most hated foods is liver, which received the harshest reception nationwide. Forty percent of respondents said they hated it outright, with another 15 percent saying they disliked it.