NUTR 1010 Lecture Notes - Lecture 34: Cytochrome, Iron-Deficiency Anemia, Red Blood Cell
31 May 2016
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A trace mineral (the opposite of a major mineral) Heme in meat, poultry, fish and seafood. It"s in a heme molecule from hemoglobin or myoglobin: nonheme iron in beans, lentils, grains and some vegetables, iron added to flour or breakfast cereals. Cooking in cast iron increases the iron contentof your food! How much do we absorb: mixed diet 18% This is why vegans may have trouble getting enough iron. 70% of our body"s iron is in hemoglobin. Found in enzymes that are needed to metabolize energy from cho, fat and protein. Binds to the iron in cytochromes and stops cells from using oxygen. Why so much: women need more because of menstruation. Making the fetal and maternal tissues requires iron. Increased blood volume (dilutes red blood cells) Too little iron has major effects on the health of your blood. 45% of the blood volume: white blood cells (part of the immune system) and platelets (for blood clotting)
