The autointoxication theory assumed that dietary changes aimed at reducing toxic decomposition in the colon would be beneficial to health.

In a physical sense, autointoxication refers to the self-poisoning of the body due to the buildup of toxins. In a psychological sense, it can refer to a belief that negative thoughts and emotions can have a detrimental impact on one's mental health.

Anthony Bassler has written:

'Intestinal toxemia (autointoxication) biologically considered' -- subject(s): Auto-intoxication, Bacterial toxins, Intestinal Diseases, Toxemia

Some words that have the Greek root "auto" include automobile (self-moving vehicle), autopilot (self-steering mechanism), and autobiography (self-written story of one's life).

Autotoxemia, also known as self-poisoning, refers to a condition in which the body accumulates toxins due to impaired elimination or excessive production. This can happen when the body's detoxification systems, such as the liver and kidneys, are not functioning properly. Symptoms of autotoxemia may include fatigue, digestive problems, headaches, and skin issues. Treatment usually involves supporting the body's natural detoxification processes through lifestyle changes, proper nutrition, and sometimes, medical interventions if necessary.