The caffeine from the coffee is absorbed into this circulatory system and goes directly to the liver where it acts as a very strong detoxifier. It decongests the liver, and causes it to dump its toxins. It causes the liver to produce more bile (which contains processed toxins) and stimulates the gall bladder to dump its contents which flows directly into the small intestine for elimination.
This frees up the liver, enabling it to process toxins more efficiently, particularly candida toxins and those caused by killing off candida. The coffee only goes to the liver, and does not circulate throughout the body so it does not act like drinking caffeine would.