Poop???

ok i know this is a period app. but i need help. my poop is literally green. like the colour of grass basically but a bit lighter. i have no idea why. i’ve been eating lucky charms for the past week.. that could explain it maybe? i don’t drink very much water usually but this has never happened before and not this bad either. it doesn’t hurt at all. it’s soft so like normal poop except green.. please help?