I have really low iron in blood, also i have lost my appetite, can this be related with my anemia?

Correlation : The anemia is not likely to be causing poor appetite (causation) but is likely related to (correlation) the cause of the anemia. Examples might include stomach ulcers -- blood loss resulting in iron deficiency anemia and the irritated ulcers relating to poor appetite. Also systemic illnesses such as rheumatoid arthritis etc may result in poor appetite and anemia of chronic disease / inflammation.