low iron intake it can lead to diseases and disorders such as; lack of attention, low energy levels, reduced ability to learn, interfere with ability to think and reduced resistance to infections. low iron intake can lead to development of anemia. This occurs when you have a level of red blood cells in your blood that is lower than normal. Iron deficiency anemia is the most common type of anemia and it occurs when your body doesn't have enough of the mineral iron. you need iron to make a protein called hemoglobin. in women of child bearing age, the most common cause of iron deficiency anemia is a loss of iron in the blood due to heavy menstruation or pregnancy.