Good Morning everyone , So this morning I noticed I had green stool. It's been awhile since I have had green stool. No other symptoms other than a little gas. The only thing I can think of that caused it was that I had a green smoothie yesterday evening around 7 pm. This smoothie had kale and spinach in it. In addition I had some blueberries. Does this sound normal or should I be concerned? I know stool color changes all the time but I don't see green that often.