Calcium Citrate Supreme by Solaray is an advanced bone building supplement. Calcium Citrate Supreme contains not only beneficial calcium, but also other proven bone building and repairing supplements. Calcium is needed to form bones and teeth and is also required for blood clotting, transmission of signals in nerve cells, and muscle contraction. The importance of calcium for preventing osteoporosis is probably its most well-known role. Calcium also plays a role in lowering blood pressure. By reducing absorption of oxalate, a substance found in many foods, calcium may be able to indirectly reduce the risk of kidney stones. Calcium also binds some fats and cholesterol in the gastrointestinal tract. Calcium supplementation may help lower cholesterol levels. Why Calcium Citrate? Choosing a form of calcium supplement can be confusing. Studies show that calcium citrate is better absorbed than calcium carbonate. Virtually all comparative studies find that calcium citrate/malate (CCM) absorbs better than other types of calcium CCM is increasingly the form of calcium recommended by nutritionally oriented doctors.