User blog comment:Almiralovestwilight/What if Vamps eat Human Food ??/@comment-99.92.198.113-20120412232506

According to the Twilight Saga Official Illistrated Guide (and I quote):

"Vampires connot digest food, but they sometimes find themselves in a situation where eating human food is unavoidable to keep up a human facade. The food that they consume sits in their stomach until they can find a private place to cough it up."

-Stephanie Meyer, Twilight Saga Official Illistrated Guide. Pg. 540

So there you have it. They puke it up.