To maintain bone health, essential vitamins include calcium, vitamin D, and vitamin B12. Calcium is crucial for strong bones and can be found in dairy products like milk and yogurt. Vitamin D, produced by the body from sunlight, helps absorb calcium and phosphorus, which is essential for healthy bones and teeth. Older adults, who may not produce enough vitamin D naturally, can benefit from supplements. Vitamin B12 is important for healthy blood and nerve cells and is best obtained through supplements or B12-fortified foods for those over 50. A balanced diet rich in these vitamins, along with regular check-ups with a doctor, can help maintain bone health.