Medically reviewed by Kumkum S. Patel, MD Key Takeaways Villi are tiny projections in the small intestine that absorb ...

The mouth starts the digestion process by breaking food down into a more easily digestible form. It does this through a combination of mechanical and chemical digestion. After people take food in ...

The Conversation is asking kids to send in questions they'd like an expert to answer. Owen, age 4, wants to know how your body makes poo. An expert explains. Much of the food you eat is absorbed by ...

Brian Robert Boulay does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations ...