the most common causes of green stool are food coloring and excess fiber, but it does depend on what kind of
green youre talking about. if its very slimy
and not like normal
diarrhea, its most likey bile, stomach acids, etc. if its an acceptable consistency, looks like youd expect it to, and just tinted, its most likely fiber or food colorings. if youre not having any other symptoms than the stomach and stool problems, i would think its some kind of food poisoning or bad reaction to food.