Iron is absorbed predominantly in the: (A) Stomach, (B) Duodenum, (C) Ileum, (D) Colon
Answer is B. Iron absorption occurs predominantly in the duodenum and upper jejunum ( Muir and Hopfer, 1985) (Figure 1). The mechanism of iron transpo from the gut into the bloodstream remains a mystery despite intensive investigation and a few tantalizing hits. Ref: guyton and hall textbook of medical physiology 12 edition