The recently-introduced Double Down tops this list due to its outrageous premise of replacing the bread of an otherwise "nutritious" bacon, cheese, and spiced mayo sandwich with two pieces of fried chicken (a grilled version is also available). While other items on this list pack more calories and fat, this product stands out due to its willingness to subvert our expectations of exactly how unhealthy a chicken "sandwich" can be.

Clocking in at 1420 calories and 107 grams of fat, this burger has already achieved infamy as one of the unhealthiest food products ever conceived and has been called "the fast food equivalent of a snuff movie" by the Center for Science in the Public Interest. It features two 1/3lb. patties, three slices of cheese, four pieces of bacon, and mayonnaise on a buttered bun. Damn.

Famously described by Patton Oswalt as "a failure pile in a sadness bowl," this product combines mashed potatoes with corn, fried chicken, gravy, and cheese. While we enjoy every one of those things individually, combining them all together produces something that is singularly unappetizing and strongly resembles an attempt by the kitchen to dispense of leftover food.

This taco, which is filled with six marinated shrimp, lettuce, salsa, and Avocado Ranch Sauce, actually sounds somewhat appealing. That is, until you consider the source. Taco Bell is widely accused of using poor quality meat in all of its food items, and the mere idea of them handling raw shrimp is disturbing enough to land it on this list.

Although CiCi's is only a regional pizza chain (with locations in 33 states), we felt it fair game for this list. As such, including this abomination was a no-brainer. A pizza crust topped with cheese sauce, then cheese, then macaroni and cheese, this pizza is the ultimate cheese-and-carb overload. Sadly, it is a very popular item at CiCi's value-priced pizza buffets.

This massive breakfast sandwich features a sausage patty, two slices of ham, three slices of bacon, cheese, and eggs on a toasted bun, along with 47 grams of fat. With its heft and ridiculous self-aware name, it takes the top spot on this list for breakfast items, edging out Hardee's similarly appointed Monster Biscuit.

It is probably true that these chicken rings are comprised of the exact same ingredients as a typical fried chicken nugget. Yet, their unnatural ring shape transforms what might be appealing fare into morbid curiosity. Perhaps we're being a bit prudish, but very few meats are appealing in ring form, and chicken is definitely not one of them.

Dubbed the breakfast "sequel" to the Monster Thickburger, Hardee's Monster Biscuit piles bacon, sausage, ham, cheese, and eggs between two biscuit halves. At 770 calories and 55 grams of fat, this is actually worse for you than Burger King's Meat'normous Omelet Sandwich, but we ranked it lower due to the less amusing name and more conventional biscuit base.

This offering from White Castle makes this list in large part due to the commercial below, which aired during the height of swine flu hysteria. But this item is well-suited for its demerits as well, combining pork and sweet BBQ sauce for a frighteningly low price of 99 cents.

We are generally fans of McDonald's breakfast options, but the McGriddle is a rare misstep. Available in numerous varieties, the McGriddle takes the biscuit or english muffin usually found at the Golden Arches and replaces it with syrup-infused griddle cakes. The result is a greasy, unnecessarily sweet mess.

Pizza Hut has been experimenting with stuffing cheese in the crust of its pizzas for over a decade now, but its Cheesy Bites pizza takes that concept to the extreme by replacing the pizza crust with 28 individual dough-and-cheese balls, each seasoned with garlic butter flavor. We can't help but be impressed by Pizza Hut's vision here, even if we're disgusted by the product.

With this burger, Burger King endeavored to take a dinner plate from a steakhouse and put it all on a bun. The Loaded Steakhouse Burger is, as its name suggests, a "steak burger" piled with bacon, cheese, crispy onions, A1 sauce, and, wait for it, baked potato topping. At 970 calories, this burger is loaded alright.

We're really not trying to pick on Yum! Brands (the company that owns A&W, KFC, Long John Silver's, Pizza Hut, Taco Bell, and Wing Street), here, but this offering from Long John Silver's makes our list by going a topping too far. The Baja Fish Taco is a flour tortilla filled with half a fried fish filet, lettuce, a tangy mayonaise-based "Baja sauce" and, oddly, "crumblies," which are Long John Silver's fried batter bits that cover the bottom of their platters.