6. IRON- Iron proteins, functions, Sources, RDA, Absorption, transport, storage, anemia

total body iron 3 to 5 gm 75% in Hb other iron containing proteins Mb cytochromes cyt p-450 enzymes RDA - 10 to 20mg Sources leafy veg, jaggery, cereals, pulses, liver, meat Functions transport of Oxygen and carbon dioxide antioxidant detoxification cellular respiration absorption from duodenum and jejunum DMT1 Ferroportin transport form- transferrin in blood storage form- Ferritin in liver, spleen, bone marrow, mucosal cell Disease states 1. Iron deficiency anemia 2. Hemosiderosis 3. Hemochromatosis