I started taking DA for IBS and DA for Gas Prevention during my eights month of pregnancy. I'm IBS-C. The moment (almost literally) that I gave birth of my son, my IBS symptoms have cleared up, for lack of a better term. My son is now 12 weeks old. I also take GNC's Papaya Enzymes. That combination has worked for me for four months and I can eat anything. So I don't know if it was the DA/Papaya or the hormonal changes in pregnancy/birth that has helped me.
ETA: My symptoms were constipation, abdominal pain and severe bloating.