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New medical research has shown that relying solely on calcium supplements is not enough to maintain bone strength unless it is combined with vitamin D and a balanced diet. A study published in the Journal of Bone and Mineral Research indicated that calcium supplements without careful monitoring may increase the risk of kidney stones or heart problems at high doses. Doctors confirmed that the optimal source of calcium remains through natural foods such as leafy greens and dairy, where absorption is better and safer. They also emphasized that supplements should be prescribed in specific doses and under medical supervision, especially for the elderly and women after menopause, to avoid calcium deficiency associated with osteoporosis. Researchers concluded that building bones requires a combination of calcium, vitamin D, and physical activity, not just taking pills, as the skeletal system relies on a balance of nutrients and hormones to maintain its density.