Iron supplements are dietary products that provide additional iron, an essential mineral needed for various bodily functions, including the production of red blood cells. They are commonly used to treat or prevent iron deficiency anemia, a condition where the body lacks enough iron to produce adequate hemoglobin, leading to fatigue and weakness. These supplements come in various forms, such as tablets, capsules, and liquids, and can be found over-the-counter or prescribed by a healthcare professional. It's important to take them as directed, as excessive iron intake can lead to toxicity and other health issues. Always consult a doctor before starting any supplement regimen.