I.Overview Malnutrition is directly responsible for 300,000 deaths per year in children younger than 5 years in developing countries and contributes indirectly to more than half of all deaths in children worldwide. In addition, it increases health care costs. See the image below. II.Sign and Symptoms The most common and clinically significant micronutrient deficiencies and their consequences include the following: Iron: Fatigue, anemia, decreased cognitive function, headache, glossitis, and nail changes Iodine: Goiter, developmental delay, and mental retardation Vitamin D: Poor growth, rickets, and hypocalcemia Vitamin A: Night blindness, xerophthalmia, poor growth, and hair changes Folate - Glossitis, anemia (megaloblastic), and neural tube defects (in fetuses of women without folate supplementation) Zinc: Anemia, dwarfism, hepatosplenomegaly, hyperpigmentation and hypogonadism, acrodermatitis enteropathica, diminished immune response, and poor wound hea...