A few months back I ordered products from this web site http://www.drnatura.com/
I emailed people who used it and swear by it. It takes several months to fully cleans. Also, be warned because there are some very graphic pictures as you explore the site. It's facinating.
I've put it off. I think I will do it. I got two month's worth of supplies. The only part I don't like is the fiber. I wish it wasn't a powder.
Anyway, maybe this can help some of you decide to, if only to get more information on the importance of doing it.