Facing the FAQs

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Why does poop smell?

You might want to light a match because Dr. Oz has something to tell you: The origin of poop's odor is sulfur, which smells like a rotten egg.

Many foods contain sulfur. "Eggs are one of them. Cheese—there's a reason they say, 'Don't cut the cheese,'" Dr. Oz says. Other sulfurous foods include meats and vegetables.