Many nutrients are involved in keeping bones healthy. Calcium and vitamin D are two of the most important.Calcium is a mineral that’s essential to your body functioning properly and is stored in your bones. Your body needs vitamin D to absorb calcium. Not getting enough calcium in your diet can lead to fragile, brittle bones that are more prone to fractures and disease.Vitamin K, vitamin C, magnesium, and phosphorus are other important nutrients for bone health.