Iron is an essential nutrient for the human body, as it plays several vital roles. It is a component of hemoglobin, the protein in red blood cells responsible for carrying oxygen to all parts of the body. Iron also helps muscles store and use oxygen and contributes to the formation of enzymes and proteins. The body needs specific amounts of iron to perform its vital functions. Iron deficiency can lead to weakness and, if it becomes severe, may result in iron deficiency anemia. On the other hand, excessive iron intake may cause iron toxicity. Some people also suffer from a condition known as hemochromatosis, an inherited disorder that causes iron to accumulate in the body. Stages of Iron Deficiency Excess iron is stored in the body, and the body begins to use these reserves when iron levels start to decline. Iron deficiency progresses through three main stages: Stage One: Depletion of Iron Stores This is the initial stage, in which hemoglobin levels remain normal, but iron stores become very low. Symptoms may not be apparent at this stage. Stage Two: Iron Deficiency At this stage, iron stores and serum iron levels decrease, and hemoglobin levels may begin to decline. Symptoms of iron deficiency may start to appear. Stage Three: Anemia At this stage, hemoglobin levels decrease to the point where the blood’s ability to deliver oxygen to the body’s cells is impaired. Symptoms of iron deficiency anemia become more noticeable, including severe pallor, dizziness, and fatigue. In children, severe deficiency may also affect brain growth and development. Symptoms of Iron Deficiency Severe Fatigue: Fatigue is one of the most common symptoms of iron deficiency. It occurs because reduced hemoglobin levels limit the amount of oxygen reaching body cells, decreasing their ability to produce energy. Pallor: Pale skin may appear on the face, the inner lower eyelids, and the nails. It is more noticeable in moderate to severe anemia due to reduced hemoglobin levels. Shortness of Breath: Reduced hemoglobin levels limit oxygen delivery to the muscles, making daily activities such as walking and climbing stairs more difficult. Headaches and Dizziness: Anemia may cause headaches and dizziness due to the reduced capacity of the blood to deliver oxygen to body tissues. Heart Palpitations: Low oxygen levels may force the heart to work harder to pump blood and deliver oxygen to the body’s cells, potentially causing a rapid heartbeat or palpitations. Severe untreated cases may lead to cardiac complications. Dry Skin and Hair Damage: Iron deficiency may be associated with dry skin and hair loss. However, these symptoms may also occur for other reasons. Tongue Swelling and Mouth Ulcers: Iron deficiency may cause a pale, inflamed, or swollen tongue, as well as cracks and sores at the corners of the mouth. Restless Legs Syndrome: People with iron deficiency are more likely to experience restless legs syndrome, which causes uncomfortable sensations in the legs and an urge to move them continuously, particularly during periods of rest. Nail Deformities and Brittleness: In advanced cases, nails may become brittle and break easily. They may also curve inward, developing a spoon-shaped appearance. Other Symptoms: These include an intense desire to consume non-food substances, such as ice, clay, paper, or chalk. This condition is known as pica. People with iron deficiency may also experience cold hands and feet, anxiety, difficulty concentrating, and mood changes. If moderate or severe symptoms of iron deficiency occur, a specialist should be consulted to diagnose the condition, perform the necessary tests, and determine the appropriate treatment. Treatment of Iron Deficiency Iron deficiency can be treated and prevented through the following measures: Increasing Iron-Rich Foods: This is one of the most important dietary approaches.Iron-rich foods include red meat, poultry, seafood, dark leafy green vegetables such as spinach and kale, dried fruits such as raisins and apricots, peas, beans, other legumes, nuts, seeds, and iron-fortified foods. Enhancing Iron Absorption: Consuming foods rich in vitamin C alongside iron-rich foods helps improve the body’s ability to absorb iron. Avoiding Certain Foods and Drinks That Reduce Iron Absorption: It is preferable to avoid consuming tea, coffee, calcium supplements, and dairy products at the same time as iron supplements, as they may reduce iron absorption. Taking Iron Supplements: A doctor may recommend iron supplements when necessary. The prescribed dosage should be followed carefully. These supplements may cause side effects such as stomach pain, heartburn, nausea, diarrhea, or constipation, as well as dark-colored stools. In some cases, intravenous iron may be recommended, particularly when oral iron supplements are not tolerated or iron absorption is impaired. Intravenous iron must be administered under medical supervision. It is important to identify and treat the underlying cause of iron deficiency and monitor laboratory tests to ensure that iron levels and iron stores improve. Al-Mustaqbal University The First University in Iraq