The idea was that the intestines were a sewage combination and that constipation, although never specifically defined, resulted in a cesspool within the body where food wastes would putrefy, become toxic, and get reabsorbed through the intestines
His book, Colon Health, Emphasizes prevention but also promises relief from these afflictions: constipation, fatigue, poor eyesight, hearing loss, asthma, prostate trouble, colds, allergies, nagging backache, respiratory disorders, digestive problems, gas, abdominal Colon Cleanser pain, colitis, thyroid deficiency, diabetes, and lousy with other aliments.