The 14 Worst Fast Food Burgers

10. Steak 'n Shake 7×7 Steakburger

1,660 calories, 128 g fat (62 g saturated fat, 6 g trans fat), 3,800 mg sodium, 29 g carbs (1 g fiber, 4 g sugar), 95 g protein

This burger is truly scary! At Steak 'n Shake, the 7×7 Steakburger stacks seven patties that alternate with seven slices of American cheese in between bun slices. Honestly, this burger could actually do more damage to your jaw than to your health. Besides, it's important to note the astronomically high amount of fat, a day and a half's worth of sodium, and the startling 6 grams of heart-harming trans fat.