Why Is Your Poop Green?

According to Hank Green and the good folks at SciShow, one of the most commonly googled questions on Earth is "why is my poop green?" Why, indeed?

The short answer: Your food went through you too fast. That, or you recently ate a bunch of leafy, green vegetables. The slightly longer explanation, which Green delivers here, involves a primer on bilirubin, a substance produced by your liver.

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For info on why your stool is black, red, or yellow, greasy, and foul-smelling, see here.

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