Hi Irene:I have been using Mike's tapes for 34 days now, and have found them to be excellent! From what I understand they are specifically geared for IBS. There is no mention of a difference between C and D.I've had wonderful results with them, and so have many other people on the Board who have been using them! I would definitely recommend them.
JeanG------------------Member of "The Advance Guard for the Ozone Rangers".May the "farce" be with you. JeanG
