may be a normal condition or it may be a sign of intestinal disorders. Normally, bile, which is yellow-green in color, is secreted to help digest the food, and as stool transits through the digestive tract, it gradually changes color into brown because of the normal digestive mechanisms. Infections that cause diarrhea
, such as Salmonella food poisoning
, cause the stool to pass through the intestines quickly, not giving it enough time to turn brown, and thus the appearance of green stool. Stool may also be green due to medication use, such as iron supplements
, antibiotics, or laxatives, or due to ingestion of foods with green food coloring.