I personally would stay away from it, but I seem to remember my list saying coffee (w/o cream) was ok during the prep day. So if that's ok, then Coke should be.
Status: Remission since late May 2009!
Symptoms began in November 2008, ~4 weeks after giving birth to my son.
Diagnosed with pancolitis on 1/30/09
Currently taking Asacol (400mg 4 pills 3x daily), Rowasa twice weekly, Natural Factors Ultimate probiotic 12/12 Formula, and Zoloft (25 mg).