Meconium
Iron, at least, certainly can (it may also cause greenish stool).
The first stool/poop a newborn pup/human takes is a very sticky greenish black and is called meconium.
Intestinal bleeding may happen if someone has bleeding in their intestines. It can also happen in the stomach, which then causes black stool at times.
Black stool is a condition where the feces are very dark in color. It can be the symptom of a variety of diseases or disorders. To be absolutely sure, you should consult your local doctor who can make a diagnosis.
whay causes lack of stool production
It'd probably be best to see your general practitioner. Some of the common causes of black stool are iron supplements, beets, and blood in stool. Blood in stool could range from major to minor causes; some being benign and others being deadly.You should see your General Practitioner as soon as possible.
No and if you have black stool you should go see a doctor.
Black stool is a condition where the feces are very dark and nearly black. Sometimes this is caused by supplements. Other times it is indicative of internal bleeding.
if your stool is black then there is alot of iron in your system. those who take iron tablets, their stools are black.
Greenish black
It is obsidian.