Miscalculating calories is the quickest way to derail a diet. Sharpen your skills with a quiz from Lisa R. Young's The Portion Teller:

1) A typical deli bagel has the same number of calories as about __ slices of bread.

• a. 2   b. 3    c. 5   d. 8
  

2) Take-out Chinese food comes with rice. How many cups does the typical [box] carton hold?

• a. 1/2 cup   b. 1 cup   c. 2 cups   d. 3 cups
  

3) A medium size popcorn at the movie theater contains:

• a. 4 cups   b. 7 cups   c. 12 cups   d. 16 cups
  

4) How many standard servings does an average restaurant entree contain?

• a. 2   b. 4   c. 6   d. 8
  

Who knew? And just say "no" to that movie popcorn! Yowza, 16 cups? Bet you didn't know a regular bag of microwave popcorn is still 12 cups! Really! Check the label.

Check out calorie, carb, exercise and hidden carb calculators at the Kimkins Diet Tools.