Iron Deficiency Anemia (IDA)
Microcytic, hypochromic anemia (low Hb, MCV <80 fL) due to depleted iron stores resulting in impaired hemoglobin synthesis, with low ferritin, low transferrin saturation, and elevated soluble transferrin receptor.
Also: IDA
IDA is the world's most common nutritional deficiency, affecting ~1.2 billion people, especially infants, menstruating women, and pregnant women. Causes include inadequate intake, malabsorption (celiac disease, gastric bypass, PPI use), blood loss (menstrual, GI), and increased demand (pregnancy, growth). Oral iron (60-100 mg elemental, alternate-day dosing improves absorption by lowering hepcidin), IV iron (carboxymaltose, derisomaltose) for severe or malabsorptive cases.
How one textbook covers it
Modern Nutrition in Health and Disease, 12th ed. — Ch 97: Nutritional Anemias
IDA is the world's most common nutritional deficiency, affecting ~1.2 billion people, especially infants, menstruating women, and pregnant women. Causes include inadequate intake, malabsorption (celiac disease, gastric bypass, PPI use), blood loss (menstrual, GI), and increased demand (pregnancy, growth). Oral iron (60-100 mg elemental, alternate-day dosing improves absorption by lowering hepcidin), IV iron (carboxymaltose, derisomaltose) for severe or malabsorptive cases.
Related terms
Ferritin, Heme iron, Hepcidin, Iron