Sure, a turkey burger sounds healthy. But is it, really? Not if you order the Bella from Ruby Tuesday, which packs a whopping 1,145 calories. (And yes, that's before a side of fries.)

To further enlighten you on the prevalence of preposterous portions, we spent months analyzing menus, nutrition labels, and ingredient lists to identify the food industry's worst offenders. Our primary criterion? Sheer caloric impact. After all, it's the top cause of weight gain and the health problems that accompany it. (As you read, keep in mind that 2,500 calories a day is a reasonable intake for the average guy.) We also factored in other key nutritional data, such as excessive carbohydrates and fat, added sugars, trans fats, and sodium. The result is our first annual list of the worst foods in America.

Eat at your own risk.

20. Worst Fast-Food Chicken Meal: Chicken Selects Premium Breast Strips from McDonald's (5 pieces) with creamy ranch sauce

• 830 calories
• 55 grams (g) fat (4.5 g trans fat)
• 48 g carbohydrates

The only thing "premium" about these strips is the caloric price you pay. Add a large fries and regular soda and this seemingly innocuous chicken meal tops out at 1,710 calories.

Change Your Chicken: 20 McNuggets have the same impact. Instead, choose Mickey D's six-piece offering with BBQ sauce and save yourself 530 calories.

19. Worst Drink: Jamba Juice Chocolate Moo'd Power Smoothie (30 fl oz)

• 900 calories 10 g fat
• 183 g carbs (166 g sugar)

Jamba Juice calls it a smoothie; we call it a milkshake. In fact, this beverage contains more sugar than two pints of Ben and Jerry's Butter Pecan ice cream.

Turn Down the Power: Seventy-five percent of this chain's "power smoothies" contain in excess of 100 grams of sugar. Stick to Jamba's lower-calorie All Fruit Smoothies, which are the only menu items that contain no added sugar. And always opt for the 16-ounce "small."

18. Worst Supermarket Meal: Pepperidge Farm Roasted Chicken Pot Pie (whole pie)

• 1,020 calories 64 g fat
• 86 g carbs