Osmotic diarrhea is when undigested material reduces how much water and electrolytes the bowels can absorb. It can occur when a person’s body has difficulty digesting certain foods, such as lactose.

Probiotics are available in many different species and strengths. Some studies suggest probiotics may help with certain types of diarrhea, but others indicate they have little effect. Probiotics are ...

The digestive system consists of a long tube that can be measured from the back of the mouth to the anus. The entire length of the gastrointestinal tract consists of nerves and muscles that work to ...