Thanksgiving 2014 will see over 300 million Americans gather together to gorge on Turkey, yams, stuffing and gravy to pay thanks for the harvest and the year past.

According to tradition, Pilgrims received the foods eaten from the Native Americans, however most of the foods involved – including Turkey – were introduced at a later date.

It is estimated that the average American will eat over 3,100 calories on Thanksgiving. However, this could actually be much higher, given the rising popularity of deep fried Thanksgiving turkey.

But what happens after families across the US have gorged themselves on round after round of turkey, vegetables and pecan pie?

The American Chemical Society has explained the processes involved in the body after overeating.

Video courtesy of the American Chemical Society