"[8] While colonic irrigation enjoyed a vogue in the early 20th century as a possible cure for numerous diseases, subsequent research showed that it was useless and potentially harmful.
"[10] Similarly, in response to claims that colon cleansing removes "toxins", Bennett Roth, a gastroenterologist at the University of California, stated that "there is absolutely no science to this whatsoever.
[1] Anderson describes a mucoid plaque as a rubbery, ropey, generally green gel-like mucus film that covers the epithelial cells of the hollow organs, particularly of the alimentary canal.
Anderson also claims the plaque can impair digestion and the absorption of nutrients, hold pathogens, and cause illnesses such as diarrhea, bowel cancer, allergies and skin conditions.
[3][13] Though Anderson argues that his beliefs are backed by scientific research, his claims are primarily supported by anecdotal evidence rather than empirical data, and doctors have noted the absence of mucoid plaques.
"[1][5] Another pathologist, Edward Friedlander, noted that, in his experience, he has never observed anything resembling a "toxic bowel settlement", and that some online photographs actually depict what he recognises as a blood clot.
[6] Commenting on claims that waste material can adhere to the colon, Douglas Pleskow, a gastroenterologist at Beth Israel Deaconess Medical Center, stated, "that is the urban legend.