That's what I've concluded from doing a bit of internet research.
One guy suggested this experiment - put some Metamucil in a glass with some water and leave it overnight. It'll turn into a gel that will come out in the form of the glass. Both Metamucil and the colon cleansing products' primary ingredient is psyllium fibre.
Now I guess that if you take a crapload (pardon the pun) of psyilium it will basically form into a gell and come out looking like a parasite from a sci-fi movie.
On the other hand...I would imagine that it would be effective in cleaning out the colon as well...kinda like a squeegie. The colon cleansing may help clean you out a bit, but it seems like that nasty arse monster in the photos is created by the product itself.
Shorinjiryu Kenkokan Karate
Koshiki fighting system