Calcium is a vital mineral that our bodies need to stay healthy. It plays a key role in building strong bones and teeth, making it essential for growing children and maintaining bone health in adults. Foods rich in calcium include dairy products like milk, cheese, and yogurt, as well as leafy greens like kale and broccoli. In addition to supporting bone health, calcium is important for muscle function and nerve signaling. It helps our muscles contract and relax, allowing us to move and perform daily activities. Getting enough calcium can help prevent conditions like osteoporosis, which makes bones weak and fragile.