Normal poop color is brown and can change due to your diet. Green poop may result from dietary changes or food moving quickly through your gut. Black poop in adults can be a sign of gastrointestinal ...

Black poop can be caused by certain foods or medications. Stool may also be black because of blood in the digestive tract, known as melena. A small drop of red blood is usually due to minor ...

Gastroenterologists are pushing a decades-old diagnostic tool, the Bristol Stool Scale, out of the clinic and into daily self-monitoring, arguing that most people are ignoring the cheapest gut-health ...