Calcium supplements are products designed to provide additional calcium, an essential mineral important for maintaining strong bones and teeth. They are often recommended for individuals who may not get enough calcium from their diet, such as those with lactose intolerance or certain dietary restrictions. Common forms of calcium supplements include calcium carbonate and calcium citrate. Taking calcium supplements can help prevent conditions like osteoporosis, a disease that weakens bones and increases the risk of fractures. However, it's important to consult a healthcare professional before starting any supplement, as excessive calcium intake can lead to health issues, including kidney stones and cardiovascular problems.