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Here, registered dietitians recommend the best calcium supplements for bone health and offer expert advice on who needs a calcium supplement and why.
Calcium citrate is recommended for patients with achlorhydria and those on medications that decrease stomach acidity. While calcium carbonate is the most common and least expensive form of calcium and contains 40% of elemental calcium, calcium citrate supplements contain only 21% calcium, requiring more tablets for equivalent dosage.
Up to 50% by volume and 70% by weight of human bone is a modified form of hydroxyapatite, known as bone mineral. [7] Carbonated calcium-deficient hydroxyapatite is the main mineral of which dental enamel and dentin are composed. Hydroxyapatite crystals are also found in pathological calcifications such as those found in breast tumors, [8] as ...
This chemical structure affords a high affinity for calcium hydroxyapatite, allowing for rapid and specific skeletal targeting. Bisphosphonates are a class of drugs that prevent the loss of bone density, used to treat osteoporosis and similar diseases. They are the most commonly prescribed drugs used to treat osteoporosis. [1]
Octacalcium phosphate (sometimes referred to as OCP) is a form of calcium phosphate with formula Ca 8 H 2 (PO 4) 6 ·5H 2 O. [1] OCP may be a precursor to tooth enamel, dentine, and bones. OCP is a precursor of hydroxyapatite (HA), an inorganic biomineral that is important in bone growth. [2] OCP has garnered lots of attention due to its ...
The mineral in bone (known as bone mineral) is hydroxyapatite with a lot of carbonate ions, while the organic portion is made mostly of collagen and some other proteins. The hierarchical structural of bone spans across to a three tiered hierarchy of the collagen molecule itself. [ 14 ]
Calcium hydroxyphosphate (calcium phosphate tribasic, tribasic calcium phosphate, hydroxyapatite, HAp) is an inorganic chemical compound that is made up of calcium, hydrogen, oxygen and phosphorus. Its formula is Ca 5 (OH)(PO 4) 3. [1] It is found in the body and as the mineral hydroxyapatite. [citation needed]
Tetracalcium phosphate is a component used in the formation of some hydroxyapatite calcium phosphate cements that used for the repair of bone defects. [3] One example of a hydroxyapatite cement forming reaction is that of tetracalcium phosphate and dicalcium diphosphate dihydrate: [4] Ca 4 (PO 4) 2 O + CaHPO 4 ·2H 2 O → Ca 5 (PO 4) 3 (OH ...
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