You might want to try Yogi Tea’s Green Tea Kombucha:

Kombucha is supposed to cleanse the body of toxins. Personally, I just like the smooth, sweet minty flavor of this stuff. I don’t drink more than one cup a day, because Kombucha is supposedly hard on the liver.
Disclaimer: Don’t use if you are pregnant or nursing. Also, there has been a fair amount of controversy surrounding Kombucha. Here is an article on the CDC site. My understanding here is that the folks adversely affected by Kombucha in these cases were brewing it themselves using kombucha mushrooms.
Here is a snippet from the report regarding commercial Kombucha production that I found reassuring:
“FDA has evaluated the practices of the commercial producers of the Kombucha mushroom and has found no pathogenic organisms or hygiene violations (5). However, because the tea is produced under varying conditions in individual homes, contamination with pathogenic organisms such as Aspergillus is possible. When prepared as directed, the pH of the tea decreases to 1.8 in 24 hours. Although this level of acidity should prevent the survival of most potentially contaminating organisms, tea drinkers have reported molds growing on the Kombucha (CDC, unpublished data).”
So what kind of toxins and how does it “cleanse”… this isn’t like olestra is it?
no, no. no “anal leakage”
I just drink it when I feel like I’m fighting a cold, because it is supposed to “support the immune system”
Wikipedia has a good article on it here.