I have had severe constipation all of my life. A CT scan revealed a tortious colon. I have both twists and folds, making it very difficult for food to pass through the gut, leading to constipation. I am to the point where I believe that if I eat several pieces of toast, and then otherwise eat lots of the right foods, I will still have a major problem because the mass of bread reaches a twist in my colon and blocks anything else behind it, despite if those are the right foods. (This is just my impression, about my condition.) I have had to use enemas in order to function (for decades). Anyway, I wrote on the tortious colon blog that I've discovered (for me, anyway) that insoluble fiber helps more than soluble fiber. (There's a book on amazon called IBS-IBD Fiber Charts, if you want to explore this. Its the only resource I've found so far that lists the sources of soluable and insoluble fiber.) Now that we're in the Holiday season, I've been eating very small pieces of fruitcake (1/2 inch slice) every day. Suddenly it was like I had never had a problem at all. No enemas. Everything normal. We ran out of fruitcake, and I was back to my miserable existence again. (The fruitcake I like is Deluxe Fruitcake, from Corsicana, Texas, and available on Amazon...just FYI.) Anyway, its mostly pecans, candied cherries and pineapple, and dates. I looked those up. All are around 75-80% insoluable fiber. So my theory continues about fiber. Anyway, I hope you find something that will help you. I understand that tortious colon can be from birth (which then is called a redundant colon), but can also just develop sometime later. Hope you find some relief. Its wonderful when you finally get there!