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Major Steps To Process Iron

Figure 1. Iron absorption. Iron enters the stomach from the esophagus. Iron is oxidized to the Fe 3 state no matter its original form when taken in orally. Gastric acidity as well as solubilizing agents such as ascorbate prevent precipitation of the normally insoluble Fe 3 .Intestinal mucosal cells in the duodenum and upper jejunum absorb the iron.

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