Points Opportunity!

The following is taken from the "Obesity Whys of the Wide" presentation from John C. Mobley, M.D.  Fill in the blank and post your answer as a comment before the weekly meeting on January 21 and earn 1 point if you're correct!
(All posts will be reviewed by the moderator before being made public.  Please remember to include your name so you will receive your points!)

To gain one pound in a year requires an imbalance of 11 calories per day,
or 2 ________.