Detoxification, or detox for short is the removal of toxic substances from the body. In conventional medicine, detoxification can also be achieved artificially by techniques such as dialysis and (in a very limited number of cases) chelation therapy. There is a firm scientific base in evidence-based medicine for this type of detoxification. Detoxification can also refer to the period of withdrawal during which a person's body to return to homeostasis after long-term use of an addictive substance.
Many alternative medicine practitioners promote various other types of detoxification such as "diet detoxification.
Colon cleansing (colon therapy) encompasses a number of alternative medical therapies intended to remove fecal waste and unidentified toxins from the colon and intestinal tract. Colon cleansing may take the form of colon hydrotherapy (also called colonics or colonic irrigation) or oral cleansing regimens.
Colon hydrotherapy uses enemas to inject water , sometimes mixed with herbs, or other liquids, into the colon using special equipment. Oral cleaning uses dietary fiber, herbs, dietary supplements or laxatives Practitioners believe colon cleansing removes accumulations of feces from the walls of the large intestine which are believed to putrefy, harbour parasites or pathogenic gut flora to cause nonspecific symptoms and general ill-health (referred to as "autointoxication"), a hypothesis based on medical beliefs of the Ancient Egyptians and Greeks that was discredited in the early 20th century.