Magnesium plays a crucial role in bone structure and health. It is involved in the conversion of vitamin D into its active form, which, in turn, supports calcium absorption. Magnesium deficiency can lead to osteoporosis, making it a critical supplement for those recovering from bone injuries. For optimal bone health, adults should aim for about 310 to 420 mg of magnesium daily, which can be obtained through foods such as nuts, seeds, whole grains, and legumes.