Dr. Jitesh Jain discusses the widespread practice of calcium supplementation and the public belief that calcium is always good for health. However, the document notes that calcium and vitamin D supplements do not prevent fractures and calcium does not help fracture healing or joint pain. While a good diet with calcium-rich foods like dairy and exercises is important, extra calcium supplementation beyond what is get in a balanced diet is not necessarily for most people. Potential health risks of too much calcium intake include kidney stones, heart attacks, and prostate cancer. The doctor recommends a more natural approach of calcium from foods and weight-bearing exercises instead of supplements for bone health.