Intestinal Contents Water Absorption

Intestinal contents water absorption is the physiological process by which water is absorbed from the lumen of the intestines (both small and large) into the body. This process is essential for maintaining fluid and electrolyte balance, supporting nutrient absorption, and forming solid feces. It relies on osmotic gradients created by active transport of solutes, mainly sodium and glucose in the small intestine, and is regulated by hormones like aldosterone in the large intestine. Disruption of this process can lead to diarrhea or constipation.

Other names

Water absorption in intestinesIntestinal water transportFluid absorption in the gut

Osmotic gradients created by active solute transport, particularly sodium and glucose, drive passive water movement. Aldosterone regulates sodium and water absorption in the colon.