I got a couple of medium stones out the very first time I did a coffee enema.
While releasing the enema, my abdomen made a gurgling sound and when I looked into the toilet I saw the green stones floating among the debris. They looked exactly like the stones that come out with a liver flush.
I have also passed stones from Epsom Salt alone, before I drank the olive oil mixture. This is how I know Stephen "Quackwatch" Barrett and other big pharma snakes like him are 100% wrong.