Calcium plays a vital role in the body, particularly regarding bone health and muscle function. It is essential for maintaining the structure and strength of bones and teeth. During exercise, calcium is also crucial for muscle contractions, allowing muscles to function effectively during physical activity. Adequate calcium intake can prevent the risk of osteoporosis and other bone-related conditions, especially in active individuals. Sources of calcium include dairy products, leafy greens, and fortified foods, making nutrition important in supporting both bone and muscle health as individuals engage in various activities.