The ability of the red blood cells to deliver oxygen is then reduced. This condition is called iron deficiency anemia. It can also result from blood loss from the gastrointestinal tract in males or females. Some individuals do not show signs of anemia. Others may feel tired, have less energy, or look pale.
Anemia can also cause shortness of breath and can reduce the body's ability to fight infections.
Chronic severe anemia can lead to more serious symptoms. Simple blood tests are used to detect iron deficiency anemia. It may take 3 to 6 months to correct anemia due to iron deficiency. Iron supplements will be necessary once iron deficiency is found. Iron is found in many foods.