Blue dye (think “Superman” flavor of ice ... and if it is not broken down during digestion, children may have dark green stools. According to the American Academy of Pediatrics, most dark ...

The Blue Poop Challenge tracks your gut transit time and can reveal some interesting secrets about your digestive system. The time it takes for food to travel through your digestive system can ...

The color should gradually change from black to dark green, then yellow. After 1 week of life, the stool should no longer be black. If a black color persists, it is vital to seek medical advice.

Although green, yellow, and brown hues are generally normal, black, red, or white poop may sometimes signal underlying issues. In the first week of life, a baby's stool changes from meconium to ...