Iron Absorption 2

The video explores iron metabolism, focusing on the absorption of heme and non-heme iron in the duodenum. It explains the structure of heme B, the oxidation states of iron, and the dietary sources of heme and non-heme iron. The video details the absorption mechanisms in enterocytes, highlighting the roles of divalent metal transporter 1 and the heme transporter. It also discusses the regulation of iron levels in the body, the role of apoferritin, and the excretion of excess iron through intestinal cell sloughing.

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