Chelated calcium is calcium bound to an organic acid (citrate, citrate malate, lactate, gluconate, aspartate, or orotate). The chelated forms of calcium offer some significant advantages and disadvantages compared with calcium carbonate.
Chelated calcium is a form of calcium bonded to amino acids, so that the human body will recognize it as a food and absorb it easier. Chelation improves absorption over that of other forms of calcium. Many chelated forms of calcium are proprietary blends. However, some forms are known as calcium gluconate, calcium lactate, calcium citrate and calcium citrate malate.
Chelated calcium has been proven to offer maximum absorption and that is exactly what you will find in our supplements. This type of calcium is also retained better in your body’s tissue – like your teeth and bones.
Chelated calcium is one of three broad classifications of calcium supplements. The other two are naturally-derived calcium and refined calcium carbonate. Chelated calcium are synthetic calcium compounds, The most popular chelated calcium is calcium citrate.
Chelated Calcium supplements are available in a bewildering array of combinations with vitamins and other minerals. Calcium supplements often come in combination with vitamin D, which is necessary for the absorption of calcium. However, calcium and vitamin D do not need to be taken together and/or in the same preparation in order to be absorbed by the body. Minerals such as magnesium and phosphorus also are important but usually are obtained through food or multivitamins. Most experts recommend that nutrients come from a balanced diet, with multivitamins used to supplement dietary deficiencies.
Chelated Calcium supplements are used to prevent or reverse osteopenia and osteoporosis. These are conditions where the bone mineral density, or BMD, is lower than normal. If osteopenia worsens, it is called osteoporosis. When the density of a bone is less than normal, or porous, the bone becomes weak and is more susceptible to breakage. Osteopenia and osteoporosis can occur at any age in both men and women, especially if there is not a balanced diet and exercise. Before taking a calcium supplement, ensure its safety with a health care provider.
Chelated Calcium supplements reduce the effectiveness of some medications, including the antibiotic tetracycline and the anticonvulsant phenytoin (aka Dilantin). Talk to your doctor if you take either of these or if you have issues with your parathyroid gland, kidney stones or kidney disease. Stop taking it if you start to have severe constipation, nausea, excessive fatigue or large urine output.
Chelated Calcium supplements are also limited in the amount of calcium they can replace on a daily basis. Efficiency of absorption is inversely related to the total amount consumed such that it may be as high as 50% at intakes of 250 mg while it is only 20% at intakes of 2400 mg. Presentation of large amounts of calcium to the brush border exceeds capacity for mucosal uptake.