Medically reviewed by Kumkum Sarkar Patel, MD The large intestine absorbs water and nutrients from food waste.Constipation, diarrhea, and hemorrhoids commonly affect the large intestine.Eating more ...

When it comes to intestines, it sure seems like two are better than one. I asked my friend Franck Carbonero why that is. He’s a microbiologist at Washington State University. He studies the bacteria ...

The research projects in Michael Snyder, PhD’s lab at Stanford cover a wide range of interests; COVID-19, the NASA twin study, and personal omics profiling to name some examples. Another interest of ...

Melanosis coli is a medical condition caused by the release of a pigment molecule — called lipofuscin — into the mucus membranes of the large intestine (colon). Melanosis coli isn’t life-threatening.

It’s perfectly normal to sometimes see some undigested food in your stool. But if you have other symptoms, it might be a sign of a health problem. Is It Normal to Have Undigested Food in Your Stool?

An ileostomy and a colostomy are surgical procedures that reroute part of the intestines to an opening in the abdominal wall. Ileostomies involve the small intestine, while colostomies involve the ...