Have you ever wondered, "What is the worst thing I could order on this menu?" Well, we've found it for you - the most caloric items at 25 of America's most popular fast food chains. Each is the single...

food item with the highest amount of calories available at the restaurant, according to the official menu (excluding specials). Are you ready to grab Panera's Mac & Cheese in a bread bowl? How about Sonic's milkshake?