As you sit down to eat, keep this in mind, the first 750 calories or so, your body begins to store a larger percentage of food as fat. A 2000 study found that the average adult gains a pound during each holiday season, and many never lose it.
What can you do?
1. Exercise within 12 hours of eating the big meal
2. Have popcorn an hour before eating.
3. Help clean up, it helps burn calories.
4. Do not sit or lie down for a prolonged period after eating. It slows down digestion.
More information can be found here: Why you feel so lousy after a huge holiday meal?...http://www.washingtonpost.com/wp-srv/special/health/holiday-eating/