Up-Formulated Superior Skeletal Support Three Per Day StimuCal Microcrystalline Hydroxyapatite & Natural MK-7 Promotes Bone Density Supports Cardiovascular Health Dietary Supplement Gluten Free Non-GMO Bone-Up provides StimuCal osssein microcrystalline hydroxyapatite (MCHA) (from free-range New Zealand calves), which includes that superior combination of the inorganic calcium lattice of MCHA within an organic protein milieu. StimuCal is rich in native type I collagen a- the predominant protein found in bone - and has been clinically demonstrated not to disproportionately spike calcium blood levels as do other forms of calcium, such as the carbonate and citrate salt forms. StimuCal is combined with Vitamin D3 and Vitamin K2 (as MK-7 [menaquinone-7] from natural fermentation [a more bioavailable form of Vitamin K)] to support the proper deposition of calcium into the bones, as well as assist in building up the bone matrix. Bone Up also supports cardiovascular and arterial health. Health Claim: Adequate calcium and vitamin D as part of a healthful diet, along with physical activity, may reduce the risk of osteoporosis later in life.