Black stool is not always an indication of a serious medical problem. Diet and medications can turn bowel movements a very dark color. However, some medical conditions also have this symptom, and individuals should be aware of their stool color and consistency and note any significant changes, as this can facilitate prompt diagnosis and treatment.
Food can play a big part in stool color. Products containing black dye may cause the stool to turn black, including cupcakes with black frosting, or Oreo cookies. Certain medications or over-the-counter drugs can also cause a color change, especially iron pills.
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