Changes

==Nutritional factors==

==Nutritional factors==

Normal [[Erythrocytes|erythrocyte]] production requires protein, copper, iron, folic acid and vitamins B6 and B12. Deficiencies lead to inadequate production of haemoglobin.

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.