Eat This, Not That! analyzed and graded 66 different chain restaurants, and came up with a list of America's Unhealthiest Restaurants. Here are the top ten. [America's Unhealthiest Restaurants, (Yahoo! Health/Men's Health)]

1. Denny's - their Double Cheeseburger is one of the worst in the country with 116 grams of fat and made it to the list of worst bugers in America.

2. Chili's - from burgers to baby back ribs, Chili's serves up some of the saltiest and fattiest fare. Also on the list of worst bugers in America, their Smokehouse Bacon Triple Cheese Big Mouth Burger has 3,810 mg of sodium and 122 grams of fat.

3. Baskin-Robbins - their Heath Shake was named Worst Drink on the Planet so it's not a stretch that most of their other menu items hold quite a caloric punch as well.

4. Carl's Jr. - instead of paring down and offering healthier choices, Carl's Jr. pushes on with their bigger is better motto when developing new burgers.  Their Double Guacamole Bacon Burger has over 1,000 calories and 74 grams of fat (27 of it is saturated fat.

5. Dairy Queen - combines the two evils with greasy, heavy foods followed by heavy ice cream concoctions. Eaters can easily spend their entire day's calories in one sitting here.

6. Ruby Tuesday - their appetizers hover at around 1,000 calories each, and even their veggie and turkey burgers have more than 850 calories!

7. Chevy's - their massive portions push many of their meals over 1,000 calories. Consistently high in fat and sodium, it's no wonder there is no nutritional information to be found.

8. Romano's Macaroni Grill - their Seared Sea Scallops Salad made it on the Worst Salads list with over 1,300 calories and 2,860 mg of sodium, and is considered an Italian grease spot when it comes to their appetizers.

9. On the border - owned by the same parent company of Chili's and Romano's Macacroni Grill (both here on this list). Their appetizers have 120 grams of fat and salads have a full day's worth of sodium. Even their taco entrees have 960 calories (tacos only, rice and beans not included in that calculation).

10. Baja Fresh - their Shrimp Burrito Dos Manos Enchilado-Style contains over 5,100 mg sodium -- more than two days' worth!

It goes to show how easy it is to underestimate the amount of calories in a seemingly simple meal. Consider your portion sizes and the types of ingredients before accepting a plate at face value.