Grass Fed Beef Living Bone 1800mg - 180 CapsulesLiving Bone is derived from the middle shaft section of long leg bones where the bone is most dense and strong with maximum mineralization. Each capsule provides 250mg calcium and 100mg phosphorus from microcrystalline hydroxyapatite, sourced from grass fed, grass finished cattle from New Zealand and Australia, raised without hormones, pesticides, or GMOs. This whole food supplement provides 100% pure bovine bone containing microcrystalline calcium