Colon cleanse is also referred to as high enemas. It is the infusion of filtered, temperature controlled water into the colon through a rectal nozzle that is inserted into the rectum. When the water is filtered in, fecal matter is then released. The colon is the last five and a half to six feet of the digestive tract. It is a hollow, tube-like organ approximately 2-1/2 inches in diameter. Its primary function is to move digested food along by wave-like motion know as peristaltic action. The colon is the living area for a host of bacteria that help synthesis vitamins, such as K and some B vitamins. The colon also functions to absorb nutrients, water, proteins and salts back into the blood stream