Calcium is an essential mineral that is very important for our body. It is best known for its role in strengthening bones and teeth, but it also has many other health-promoting properties. An adequate supply of calcium ensures optimal bone development and maintenance. An adequate supply of calcium is particularly important at a young age to support bone growth. But calcium also plays an important role in adulthood to prevent osteoporosis, a disease that leads to a decrease in bone density. However, calcium is not only important for bone health. It also supports numerous other functions in our body. For example, it is involved in muscle contraction and relaxation and therefore contributes to normal muscle function. Calcium also plays a role in blood clotting and the regulation of the heart rhythm. Calcium is also essential for the function of nerve cells and for the transmission of stimuli between nerve cells. Sufficient calcium intake can be ensured through a healthy and balanced diet. Good sources of calcium include dairy products such as milk, yoghurt or cheese, but green vegetables such as broccoli or spinach also contain calcium. However, it is important to note that calcium should not be considered in isolation, but always in combination with other nutrients such as vitamin D, vitamin K2 and magnesium. These support the absorption and utilization of calcium in the body. It is therefore advisable to ensure a balanced diet and a variety of foods in order to guarantee an optimal calcium supply. Overall, calcium is an essential mineral that is very important for the health of our body. Adequate calcium intake not only supports bone health, but also plays an important role in many other functions of our body. We should therefore make sure we include enough calcium-rich foods in our diet and, if necessary, take dietary supplements.