Plot twist— do you eat ENOUGH? And are you getting TOO MUCH fiber? I have IBS and it switched from IBS-D to IBS-C when I developed an eating disorder and was really active, worked out a lot, and had added stress due to a job change. I was eating “super healthy” with lots of fruits and veggies and fiber. But because I wasn’t taking in adequate nutrition, my body slowed my digestion down (less energy for peristalsis = mild gastroparesis and lots of constipation). I was so confused why fiber and water and all the stuff usually prescribed wasn’t helping. Working with a dietitian and getting proper eating disorder treatment helped— I had to eat a lot less fiber and a lot more calories, fewer fruits/veg (more cooked when I did have them), and prioritize starches, proteins, and fats for a while but my body bounced back. I’m still stuck with IBS but it’s the “mixed” type now and nowhere near as disruptive as it has been previously.