Maintaining strong, healthy bones is key to successful aging. Unfortunately, even health-conscious adults often fail to consume enough calcium, vitamin D, and other nutrients known to support bone health. Bone Restore formula from Life Extension provides 25 mcg of vitamin D3. To achieve optimal calcium status, Bone Restore provides 700 elemental milligrams from three forms of highly absorbable calcium, plus other minerals required to maintain healthy bones. Bone Restore also delivers a potent dose of magnesium, along with nutrients that enable calcium and magnesium to be incorporated in the bone.