Bile and bacteria is what gives
stool its final brown color. If
stool is still
orange when it is eliminated, it could mean that it is not being exposed to, or absorbing enough, bile salt. Bile is yellowish green, and when it reacts with enzymes in the bowel, it turns stool brown.Moreover, If stool is still green by the time it is excreted, it could mean that it went through the large intestine too fast to be changed in color.