The jejunum in the small intestine is the main site for the absorption of nutrients, according to InnerBody.com The small intestine consists of three sections which are the duodenum, jejunum and ileum. The jejunum is the middle section of the small intestine located between the duodenum and ileum.
The small intestine is an organ found in the abdominal cavity that is approximately one inch in diameter and 10 feet in length. The types of nutrients absorbed in the small intestine are fats, amino acids, vitamins and minerals.
The small intestine absorbs nearly 90 percent of the nutrients ingested that pass through the digestive tract. Some parts of the digestive tract are the mouth, esophagus, stomach, small and large intestines and rectum.