what foods cause black stools
Beets, other red vegetables, cranberries, and red food dyes also can turn the stool color red or maroon. Black Stools (Not Sticky, No Odor). Other causes of black stool are iron pills or bismuth-containing medications (such as, bismuth subsalicylate or Pepto-Bismol). If the stool color is dark because of any of these medications, it is typically not sticky in texture and is not foul-smelling.