Can eating black cookies cause black stools?

Passing black stool generally refers to having dark-colored bowel movements. Whether eating black biscuits will lead to black stool depends on specific circumstances. If a large amount of black biscuits is consumed regularly, black stool may occur; however, if only a small amount is consumed, stool color may not change. If discomfort occurs, it is recommended to seek medical attention promptly. Detailed explanations are as follows:

If a large quantity of black biscuits is consumed regularly, the pigments they contain may accumulate in the digestive system and be excreted in the stool. A significant amount of pigment can darken the stool, potentially turning it black, resulting in black bowel movements.

If only a small amount of black biscuits is consumed, black stool typically does not occur. Since the intake of pigment is relatively low, it is usually absorbed and processed by the digestive system without significantly affecting stool color.

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