Tara Parker-Pope writes for the Thanksgiving Help Line at the New York Times:
The commonly cited statistic is that the average American will consume more than 4,500 calories on Thanksgiving Day alone. That’s according to the Calorie Control Council, which represents the people who bring you diet foods. After thinking about how much 4,500 calories really is, I was skeptical of the claim. I decided to create a gluttonous Thanksgiving feast of traditional foods and count the calories along the way (with the help of several online calorie counters).
Find out about how many calories are really consumed here.