Yeeeeeah noooo, really, just eat right.

"Detox" is a complete health fad, so is "cleanse" because as you said "Your body has a few toxin flushing systems including your kidneys, lungs, skin and liver. In a healthy person these should provide all the detoxification you need."

If you're not putting things in there that need to be cleared out (drugs and stuff) you should be fine, and anything that does need to be taken out (excess sugar and tar in my case) is not going to be taken out with a pretty package.

I'll take a hell of a quitters cold while the body does it's job and regulates itself.