which water-soluble vitamins are absorbed in the small intestines
It opens into the large intestine via the ileocecal valve. The ileum is preceded by the jejunum. This section of the small intestine is approximately 6 to 12 feet (3.5 meters) long. The ileum absorbs mainly vitamin B12, other water soluble vitamins, bile salts, and nutrients that were not absorbed in the jejunum. More specifically, the absorption of the vitamins takes place at the terminal ileum â the last part of the ileum.