What would cause someone to have runny, lime green stool?

Green stool. Any conditions which cause the stool to transit too rapidly through the intestines can lead to green, moist stool. On the other hand eating green leafy vegetables can lead to green stool. Green cabbage, lettuce, peas, cabbage, spinach, broccoli, green salad, green leaves, celery & green beans as well as food that contains green food coloring can lead to green stool. Some meds can change stool >>.