Iron supplementation involves taking iron in the form of pills, liquids, or fortified foods to increase the body's iron levels. It is often recommended for individuals with iron deficiency anemia, a condition where the body lacks enough iron to produce healthy red blood cells. Symptoms of this condition can include fatigue, weakness, and pale skin. Iron is essential for various bodily functions, including oxygen transport and energy production. However, excessive iron intake can lead to toxicity, so it's important to follow healthcare provider recommendations regarding dosage and duration of supplementation. Foods rich in iron include red meat, beans, and leafy greens.