She has not had any green vegetables or any other green food lately.
Diarrhea can indicate a variety of problems, such as a virus or food poisoning.
Children that age often have variations in the color of the stool and it is perfectly normal. What causes the stool to turn green is not always as obvious as eating green foods. You might be surprised at some of the things that can colorize a child s bowel movements. Iron supplements, for example, or even iron-rich foods can lend a green hue to stool. So can foods that are bulky and hard to digest.