Do risks of colon cleansing outweigh the perceived benefits?

by Aimee Keenan-Greene

Despite the long history and current popularity of colon cleansing, the literature does not support its purported benefits says a new article in the Journal of Family Practice.

Colon cleansing has been around since ancient times because of the belief that intestinal waste can poison the body. Colon cleansing, also called colonic irrigation or colonic hydrotherapy, is performed by colonic hygienists or colon therapists, or can be self-administered. It is similar to an enema. 

There are no scientifically robust studies in support of this practice, according to researchers. One study suggested lymphocytes might migrate from the gut into the circulation after the procedure, which may 'improve colon and immune system function'.

Even though colon cleansing is commonly used as a holistic or alternative medicine, the Natural Standard Professional Database says there is “limited clinical evidence validating colon therapy as a health promotion practice” and noted a 'lack of sufficient evidence' for most of its prescribed uses.

Unlike enemas, for which a small amount of fluid is used, however, colon cleansing calls for a large volume of fluid—up to 60 liters—to be introduced into the rectum.  Fluids and waste are expelled through another tube. The procedure may be repeated several times. Researchers note cases where severe cramping, dehydration and hospitalization occurred following the procedure.

Most colon cleansing products come in the forms of laxatives, teas, powders, and capsules. They can also be taken by mouth. They often contain sodium phosphate, coffee, probiotics, enzymes, or any of a variety of herbs. Some products contain fiber preparations, including psyllium, flaxseed, and laxatives such as cascara, magnesium oxide, cat’s claw, artichoke leaves, burdock root, licorice, and milk thistle.

"The author is in public relations and communications and is affiliated with the Pear Health Company."