7. You hanker for fast food. Grilled chicken beats beef burger.

Result: Sodium city, and not necessarily much in the way of calorie savings, either

Sodium can soar in a chicken sandwich. The chicken breast may have been injected with a salty brine solution to help the meat stay moist. At Burger King, the Tendergrill Chicken sandwich has 1,100mg sodium, and 75% of that comes from the chicken itself. (A Whopper Jr. burger has half the sodium, little of it from the beef, and 130 fewer calories.)

Lean chicken sometimes picks up salty toppings, like the bacon and cheese on the McDonald’s Premium Grilled Chicken Club. That baby has 1,410mg of sodium, 18% more than a Quarter Pounder with Cheese—and is not lower in calories.

What to do: You have a 2,300mg-per-day sodium budget. Take a minute to scan the restaurant’s nutrition data—online, in-store, or from a smart phone.