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Tool: Portion Distortion Interactive Quiz

How much food is in one serving?

By National Institutes of Health | February 15, 2012
How many calories are in a bagel? How long would it take you to work off the calories in a standard cheeseburger? How many more calories are in an average soda today compared to the average soda 20 years ago? Take the 12-question portion distortion quiz from the National Institutes of Health and see how much you know. 

Take the Portion Distortion Quiz