Babies poop green because their intestines haven't been colonized with the good bacteria which helps in the absorption of nutrients. This is why they feed yogurt to children, to help them build a healthy bacteria culture in their gut. You're probably not getting the nutrition that you should, try eating yogurt, preferably the probiotic yogurts.
You may have giarrdia. Have your doctor rum a fecal culture and also check your urine. You may be toxic, and it would also show in a blood test. Is your BM runny or firm? Are you feeling sick? Are you drinking or eating green or blue things such as blue cake frosting? Are you drinking a green diet or aloe vitamin drink? This could be staining your rectum inside and out. If it is, it is a dye. You may want to have a proctoscope or colonoscopy done.
Probably it's something your eating. To much food coloring in food causes your poop to be colored. For example if you eat lots of fruit loops (cereal) your poop turns green. It's the food coloring. Don't worry your fine.
Your a vegetarian. And you are eating a lot of spinach. Go to WalMart and buy a pound of Twizzlers Licorice - the black one and eat that in one go. Very likely it will be black. Or try corn on the cob or in the can. Your body cannot digest chicken food so you will have yellow kernels.
. What goes in is what comes out"in a different flavor".
Did you eat anything green? If you isn't eat anything that could turn it green, see a doctor.
I poop green when I drink a lot of bullfrogs . vodka an d limeaid . yum yum .
Maybe it has something to do with what you're eating
Your probably sick, but not in a cold or fever kinda way....
