There IS a tea that is known as "the panacea" which is ginseng. It's an adaptogen that the Chinese have used for centuries to cure all kinds of health problems and seems to tune the body as a whole. My favorite is the LI Hwa pure extract North Korean Red Ginsing. Potent stuff.
I'd agree with the other posters and recommend you start with a Colon Cleanse but also drink ginseng tea (from pure Korean extract) after your cleanse. A very healthy combination.