Hi Mary - that is interesting, I had never heard of tightening before. Its usually just the stricture talk at the anastomosis site that people mention and have issues with. I am surprised overtime I hear that fiber is being used by one of us pouchers. I guess I have the wrong impression - I always assumed it was a bulking agent in which case would make it more difficult for us to move things along, not easier.
Maybe I should try it as well....is Metamucil the gold standard? I haven't read much related to fiber...perhaps a search will help. A more complete empty feeling is always a welcome site!