The small intestine is the largest part of the gastrointestinal tract and is composed of the duodenum which is about one foot long, jejunum (5-8
feet long), and ileum (16-20 feet long).

Almost 90% of our daily fluid intake is absorbed in the small intestine. The small intestine is covered with villi and microvilli. They increase the surface area of the intestinal wall exposed to chyme by 60,000%. The increased surface area makes the small intestine very efficient in absorption. Capillaries in the villi absorb amino acids, glucose, fructose, and galactose while lacteals absorb fatty acid and glycerol to travel through the lymphatic vessels.

The following Standard Process® supplements are available to support small intestine function.