Osteoporosis is not just about calcium deficiency; it also involves other nutrients and lifestyle habits. First, vitamin D is crucial because it helps the body absorb calcium. You can get it from sunlight and foods rich in vitamin D. Secondly, protein is important as it is a fundamental component of bones. Lastly, moderate exercise, especially weight-bearing exercises, can help strengthen bones. In summary, besides calcium supplementation, you should also focus on a balanced diet and proper exercise.