Medically reviewed by Qin Rao, MD Pooping is a normal physical response to eating, called the gastrocolic reflex.Certain ...

Lactose intolerance and malabsorption are conditions that arise from an insufficient production of lactase, the enzyme essential for the digestion of lactose in the small intestine. This enzyme ...

Dear Dr. Roach: I’m a 78-year-old retired medical oncologist. While in residency in New York, I got a gastrointestinal virus that left me with lactose intolerance. After a while, it improved somewhat.

So let’s just get clear about this. Nobody’s poop smells great. So smelly poop is totally normal. But sometimes you might have poop that smells worse than your norm, especially if you ate something ...

Generally, “normal” poop should be brown. When you eat food, it eventually turns that color by the time it exits the body in the form of stool, according to Baltimore colon and rectal surgeon Jeffery ...

New research explores the genetic trait that allows people to digest dairy. SAN FRANCISCO -- Got milk? If you do, take a moment to ponder the true oddness of being able to drink milk after you're a ...