Sometimes your day is so busy, you just don't have time to cook. But if you're planning on stopping somewhere for a quick snack or meal, you might want to put some thought into it.
Not all fast foods are the same, and there are really some huge differences in the number of calories in similar foods at Starbucks, McDonald's, and Chick-fil-A. You'll probably be pretty surprised by some of the results.
Take this quiz to find out what the best fast food place is to grab a low-calorie snack. You won't regret the time, or the extra inches you'll save on your waistline.
MORE: More sleep may not be making you as productive as you think
UP NEXT: Turns out eating fat isn’t as bad for you as previously thought
1) Feeling like a little something sweet on the way to the office? Stop for a fruity treat...

Smoothies and milkshakes are a yummy addition to any breakfast. And, since they have fruit in them, they sound healthy. But depending on where you order from, it's easy to forget that these fruity drinks can basically be glorified morning sundaes. So, which one should you choose?
A) Starbucks: Orange Mango Banana Smoothie
B) McDonald's: Strawberry Banana Smoothie
C) Chick-fil-A: Strawberry Milkshake
Answer: Stop at McDonald's

The Golden Arches win here. A strawberry banana smoothie at the fast food joint will only run you 210 calories. Not bad for a tasty addition to your morning routine.
The others:
(Starbucks) Orange Mango Banana Smoothie: 260 calories
(Chick-fil-A) Strawberry Milkshake: 570 calories
2) Mmmm...nothing like a breakfast sandwich to warm you up in the morning. But which one?

A smoothie isn't enough to sustain you through the agonizing hours until your lunch break so you might need a breakfast sandwich. But where should you pick one up?
A) Starbucks: Bacon and Gouda Breakfast Sandwich
B) McDonald's: Sausage McMuffin with Egg
C) Chick-fil-A: Sausage, Egg, and Cheese Biscuit
See the rest of the story at Business Insider