Jill JaraczMaksim Denisenko // ShutterstockThe most caloric burgers at 20 fast-food chainsThey're big, juicy, tasty—and if they're loaded with bacon, condiments, and cheese, all the better. It's no surprise that burgers are one of America's most popular foods, with diners eating three burgers on average every month, mostly from fast-food chains. Since burgers are typically high in sodium, fat, and carbohydrates, consuming too many can have a negative impact on your blood pressure, cholesterol levels, and overall mood. In recent years, smashburgers, a style popular at many classic fast-food chains, have swept the nation; however, the thinner patties do not necessarily mean fewer calories, fat, or sodium. Stacker identified the single most caloric burger at 20 major fast-food chains using nutritional data from Nutritionix, the FDA's daily value guidelines, and individual company websites.