Or, click Cancel to remain on the current site. Please note, on the next page, only the information in the yellow box applies to DSM employees -- complete the information required. For questions on the Comparison Tool, contact Horizon Blue Cross Blue Shield at 1-800-722-2583. SHBP/SEHBP Home.
Green: 1  Green stools are always normal, but they can be mistaken for black stools. 2  Bile. Most dark green stools are caused by bile. 3  Green stools are more common in formula fed than breastfed infants. It can be normal with both.  Green stools are more common with diarrhea. This is due to a fast transit time through the gut.
Red and black stools. Lots of foods, drinks or medications may make the poop red or black, and it is not concerning when foods do this. For example, beets and artificial fruit juice can make the poop red, while licorice, blueberries and Pepto-BismolÂ® can make it black.