What is a "cleansing diet" and why is it dutiful for you?

I have a broad idea, but I'm unsure of the types, how long it take, etc.
Any info from experience would be great, but not necessary. Thx a mill.What is a "cleansing diet" and why is it dutiful for you?
You can find information on cleansing at http://detoxcleanse.tripod.com/...
it removes toxins try a cleansing enema you should see the stuff that comes out