Calcium Complex contains key vitamins and minerals that work synergistically to help develop and maintain healthy bones and teeth. It features calcium and phosphorus derived from microcrystalline hydroxyapatite complex (MCHC), an extract of bovine bone derived from New Zealand pasture-fed, free-range livestock not subjected to routine antibiotics or growth hormones. Phosphorus works together with calcium to create the hard mineral matrix of bones. The formula also contains vitamins D3 and K2, critical nutrients that help regulate calcium levels in the body for bone strength and density. Without enough vitamin D3, the body has difficulty absorbing calcium and phosphorus, which can lead to weak and brittle bones. Vitamin K2 helps to activate a protein called osteocalcin, which is important for bone formation. Vitamin K2 also directs calcium to the bones instead of remaining in the blood vessels where it can harden and increase risk for cardiovascular diseases. Studies have shown that low levels of vitamin K2 are associated with an increased risk of bone fractures and osteoporosis. Magnesium, manganese, zinc and copper are also included in this bone-building blend. These minerals are in absorbable forms such as magnesium citrate rather than oxide. These essential minerals play critical roles in the formation of bone cells and lacking levels of each has been associated with reduced bone density which can then lead to a higher risk of osteoporosis. Fortify your frame with the comprehensive care of Calcium Complex. GLUTEN FREE, NON-GMO Who should use Calcium Complex? Those with the following concerns may benefit: Bone health Osteoporosis Osteopenia