The decrease in the number of red blood cells or the amount of hemoglobin in the blood is known as anemia. The anemia that is caused by lack of iron is referred to as iron deficiency anemia. It shows almost vague symptoms such as fatigue and short breaths, when it occurs slowly. However, if it comes quickly it often shows severe symptoms including confusion and increased thirst. Blood loss, poor absorption of iron from food or insufficient dietary intake, are some of the major causes of iron-deficiency anemia. Symptoms may include chest pain, restless leg syndrome, palpitations, irritability, poor appetite, etc. It can be prevented by taking iron supplements or by eating a proper diet containing adequate amounts of iron such as nuts, meat and spinach. This book provides comprehensive insights into the field of iron deficiency anemia. It presents researches and studies performed by experts across the globe. It will serve as a reference to a broad spectrum of readers.