Normal [[Erythrocytes|erythrocyte]] production requires protein, copper, iron, folic acid and vitamins B6 and B12. Deficiencies lead to inadequate production of haemoglobin.
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Normal erythrocyte production requires protein, copper, iron, folic acid and vitamins B6 and B12. Deficiencies lead to inadequate production of haemoglobin.
===Iron===
===Iron===
Iron is found within each haem component of haemoglobin and binds oxygen.
Iron is found within each haem component of haemoglobin and binds oxygen.