After I went to the bathroom today I was surprised to discover my stool (poop) was green! What can cause this? Should I be worried? Should I call the doctor?" (had carl jr's for lunch)
Green feces can happen without anything to worry about. It usually means they have passed through the digestive tract too fast for the bacteria there to do their work on bile. Other causes could be foods, especially where green coloring, certain medications like laxatives medical conditions such as diarrhea.
Happens to me when I drink the a Sonic drink with the Blue "whatever it's called" added to my drink. I think it's pretty rad. Next time I'll take a pic and post it up.