I have had a bad reaction to Humaworm bowel cleanse. I started slowly with one tablet then built up, taking in a lot of water as instructed, but after 5 days I have had to call it quits. My bile production has ceased, with lots of undigested food in the stools, they are yellow, and there have been only small amounts coming through and barely once a day, which is not what you would expect, as psyllium husk swells a great deal. I am more constipated now since starting the cleanse and feel that there is a big backlog in there. I am also having more extreme chemical reactions which makes me think that my liver is really in trouble. Humaworm are great and offered me a refund if I had problems. What a great company.