colon cleanse?

i always hear about people doing some type of colon clease and they say how beneficial it is and helps one feel better and is good-but why dont drs recommend this if it is such a good thing? and what are the benefits of it supposed to be-can they be dangerous or cause problems? any info?

Colon Cleanse?

Has anyone ever actually used Colon Cleanse or something like it? Does it really make you have nasty things come out of you??? I am a big health nut and want to detox, but I’m sketical about these colon clease sites claiming that parasites are in you. Has anyone really done this?