Long John Silver's "Big Catch" has a full day's worth of calories and then some.Center for Science in the Public Interest

Long John Silver's Big Catch is the worst meal in the United States, according to the Center for the Science in the Public Interest (CSPI).

This inauspicious title was bestowed upon the dish for transforming healthy fish into a fatty, salty "heart attack on a hook," as described by CSPI executive director Michael F. Jacobson.

The meal contains an astounding 33 grams of trans fat, 16.5 times the daily limit of trans fats for a 2,000-calorie diet, as recommended by the American Heart Association. That's on top of 19 grams of saturated fat and 3,700 milligrams of sodium.

The CSPI, often referred to as the "Food Police," hasn't simply singled out Long John Silver's restaurant. The watchdog group has also called out other restaurants for their similarly unhealthy meals. Here's a taste of other dishes that you'll probably want to skip next time you see them on the menu.

If You're Gonna Pig out, Here's What to Choose

If breakfast really is the most important meal of the day, you might want to order something other than the Country Fried Steak & Eggs.Center for Science in the Public Interest

Breakfast is supposed to give you the energy to get you through your day. But with over 3,000 grams of sodium, more than 1,700 calories and 23 grams of saturated fat, you're probably going to want to lie down after eating this.

As the CSPI noted in a report (PDF) issued earlier this year, that's the nutritional equivalent of five Egg McMuffins covered in 10 packets of sugar.

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A low-sugar, low-calorie smoothie can be a healthy choice. This, however, isn't one of those smoothies.Center for Science in the Public Interest

Grabbing a smoothie for breakfast might seem like a healthy alternative to a larger meal if you're dieting. But if you select this drink at Smoothie King, don't expect the pounds to melt away anywhere near as quickly as your smoothie will.

Packing 1,460 calories into a 40-ounce cup, this smoothie contains more added sugar in one drink than someone on a 2,000-calorie diet should take in over three days.

Adding sweet potato fries and a Big Apple Shake from Johhny Rockets to a Bacon Cheddar Double makes for a 3,500-calorie lunch.Center for Science in the Public Interest

If you got the Country Fried Steak & Eggs from IHOP for breakfast, you probably shouldn't follow it up with a stop by Johnny Rockets for lunch with this calorie-packed burger.

This sandwich, composed of two beef patties and four slices each of cheese and bacon, contains 1,770 calories, 50 grams of fat and 2,380 milligrams of sodium.

These Five Guys' fries can pack more calories than a burger itself.Corbis Images

Looking for a side of fries for a snack? If you want to keep the calorie count low, Five Guys' fries probably aren't for you.

A large bag of fries from the Virginia-based fast food chain contains nearly 1,500 calories and just over 70 grams of fat.

Just because you're food was a swimmer doesn't mean it's a healthy choice.Center for Science in the Public Interest

Shrimp, pasta, tomato, arugula and mushrooms might seem like a health combination. But like the smoothie earlier, this menu item contains is less nutritionally sound than most diners might expect.

The Bistro Shrimp Pasta dinner packs 89 grams of saturated fat and a whopping 3,120 calories, roughly as many as six Big Macs.

According to the Center for Science in the Public Interest, the Crispy Chicken Costoletta has as many calories as an entire KFC 12-piece Original Recipe bucket, and twice the saturated fat.Center for Science in the Public Interest

This chicken entrée isn't much healthier than the Bistro Shrimp Pasta. Like the pasta, the chicken meal contains 89 grams of saturated fat, 2,610 calories and 2,720 grams of sodium. If you're looking to cut back on calories, you'd be better off ordering any red meat entrée on the menu.

Maggiano's Veal Porterhouse packs a total of 2,710 calories.Center for Science in the Public Interest

Anyone ordering a steak is bound to expect a heavier meal than might be served if the order were for salad or soup. But the Veal Porterhouse entrée at Maggiano's Little Italy, which is covered in butter and accompanied by fried potatoes, has a total of 45 grams of saturated fat and 3,700 milligrams of sodium, more than two times the daily recommended intake for someone on a 2,000-calorie diet.

You might not want your Chili's baby back ribs quite so much if you need to watch your salt intake.Center for Science in the Public Interest

If you order a rack of ribs, a heavy dose of calories and saturated fat is par for the course. What you might not expect Chili's Full Rack of Baby Back Ribs, however, is 6,490 milligrams of sodium, nearly three teaspoons of salt. The American Heart Association recommends no more than 1,500 milligrams of sodium a day.

Saving room for dessert just isn't possible with a cake that packs this many calories.Center for Science in the Public Interest

Let's say a diner skipped breakfast, had a salad for lunch and a small entrée for dinner. That should leave plenty of room for dessert, right? If that restaurant patron orders and eats an entire Chocolate Zuccotto Cake from Maggiano's, he or she will catch up on the entire day's caloric load and then some.

This dessert contains 1,820 calories and 62 grams of saturated fat, roughly the equivalent of an entire Entenmann's Chocolate Fudge Cake, according to CSPI.