Does anyone have experience with this??

After a couple days of looser stools (though not quite diarrhea), my 2yo started pooping BRIGHT green. I immediately thought that perhaps she had eaten a crayon or something at school. But after a few more times, it seemed too much to be anything like that.

I read something about certain food dyes (purples?) doing this but don't know what she would have eaten that is different.

Aside from her being clingy & more cranky than usual and a couple weeks of a runny nose, she seems fine.