I can take a guess even though I don't really know for sure, but as no one else is answering I can take a couple of guesses. I believe certain elements of bile have a green color which should be combined with other elements that will make it a darker color, so possibly bile is not being mixed with other essential elements and remaining green. Also, you may have a lack of beneficial bacteria lining the intestinal tract or the stool is moving through the intestine too quickly but you would most likely have diarrhea if this is the case. Another explanation is that you have an overgrowth of a certain bacteria that is coloring the stool green. I wouldn't worry about it too much. If you feel improved from where you were that is a great thing, but you should continue to work on getting your body into balance and eventually your body should correct this.