AOR Ortho Bone Vegan - An advanced combination of nutrients to support the health of the skeletal system. This formula features calcium citrate-malate, which is a more bioavailable calcium than simple calcium citrate, and whose documented support for bone health is superior to that of any other vegetarian calcium source. It also provides vitamins D and K for proper absorption and usage of calcium, vitamin C and silicon to support collagen production, magnesium which makes up a large part of the bone mineral matrix, boron to reduce magnesium loss, and trace minerals manganese, zinc and copper which are co-factors for enzymes involved in bone growth and repair. Lastly, vitamins B12 and folate are included to help reduce homocysteine, a metabolic by-product that is toxic to bone fibers. AOR Ortho Bone Vegan is an excellent formula for vegetarians, vegans post-menopausal women, and those with osteopenia or a family history of osteoporosis.