I have never used Citrucel or Fibercon, only Metamucil. I know that the Metamucil has really helped me before though. It is hard to swallow though, it makes me gag by the time I reach the end of the glass. I'm saying YUCK just thinking about it, LOL!! I've gotten used to it over the years though, started taking it when I was 10. I couldn't even swallow PILLS when I was 10, that's how bad my gag reflex was. So Metamucil was a constant battle between my Mom and me, she would stand over me to make sure I drank all of it. With me gagging all the way through it, LOL!! Kinda funny looking back, but not at all humorous then : ) I wondered if the fiber pills would work as well, or even the orange flavored powder?? I used the orange flavored for a while when I was younger, but someone told my Mom that you don't get as much fiber that way, that it's all sugar or something. So after finally finding a flavor I could actually tolerate, my Mom switched me back to the yucky stuff. I know she was only doing what's best, but MAN!! If they can put a man on the moon, why can't they make a Metamucil that TASTES good that is easier to drink?? UGH!! Would be anxious to know if the pills or the flavored powders have worked as well for you all...