I was diagnosed with IBS D & C in 2017, even though I had issues way before that. I alternate back and forth. I have tried pretty much every diet known to man. Now I just try and stay away from sugar and greasy foods, because those always make me ill. As far as all other foods, I can eat let's say baked chicked on Monday and be fine. I can eat the baked chicken the next day and get sick. So strange. I think with some of us it's not just the foods we eat, it's other factors.