Why Are These People Shitting on the Toilet Seat?

There's a website called Dr. Natura that promotes a colon cleansing program. For a reason known only to the Doctor, they have published photos on their website of what their customers have shit out during the cleansing. Just click here to see them. Interestingly, many of them have laid their shit out on the toilet seat to provide a white background and good contrast for the picture. Along with the photos, you can read their testimonials about how wonderfully the product works. I don't know for sure, but I don't think I would be taking photos of whatever comes out from a colon cleansing.

Once again, I'm not posting one of the photos, because even I have some sensibilities.