One of the earliest proponents of colonics and the autointoxication theory was John Harvey Kellogg, M.D., founder of the Kellogg cereal company. As laxatives grew in popularity, colonics became less popular. Also, the lack of published evidence on the benefits of colonics contributed to its decline. Today, some alternative practitioners continue to recommend colonics. It has become popular again, and many people seek colon therapy for detox and to improve health and wellbeing. Read more below: