@bep2 I've had IBS for decades with mostly constipation, for which I take a Citrucel tablet every morning (for fiber). I was also taking a morning dose of MiraLAX, which is a stool softener that my GI recommended. When I began the Big Three, I had to stop the MiraLAX
as I began having diarrhea. It seems like a constant adjustment is necessary to avoid going from one extreme to the other. But I do think the Greek yogurt has helped me, more so than a pill or capsule probiotic was doing because the yogurt has "live" cultures.