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Calcium is a chemical element; it has symbol Ca and atomic number 20. As an alkaline earth metal, calcium is a reactive metal that forms a dark oxide-nitride layer when exposed to air. Its physical and chemical properties are most similar to its heavier homologues strontium and barium.
Calcium forms chemical compounds in the +2 oxidation state. Calcium compounds are colorless. Most calcium compounds are not toxic. They are needed in the human body, actually. They are unreactive as far as calcium ions go. Calcium oxide was used to make limelights, which have a flame heating calcium oxide and makes it glow very bright. Calcium ...
Calcium is essential to both plant and animal life and is broadly employed as a signal transducer, enzyme cofactor, and structural element (e.g., cell membranes, bones, and teeth). A large number of living organisms concentrate calcium in their shells or skeletons, and in higher animals calcium is the most abundant inorganic element. Many ...
Calcium has many benefits, but most people aren't getting enough of this mineral. Here is a list of 15 foods that are rich in calcium, many of which are nondairy.
Calcium is essential for good health and strong bones, but are you getting enough? Find out how much calcium you need and what foods you should be eating.
Calcium, the most abundant mineral in the body, is found in some foods, added to others, present in some medicines (such as antacids), and available as a dietary supplement. Calcium makes up much of the structure of bones and teeth and allows normal bodily movement by keeping tissue rigid, strong, and flexible .
If you take calcium supplements and eat calcium-fortified foods, you may be getting more calcium than you realize. Check food and supplement labels to monitor how much total calcium you're getting a day and whether you're achieving the RDA but not exceeding the recommended upper limit.
Many different health conditions can cause hypocalcemia, and it’s often caused by abnormal levels of parathyroid hormone (PTH) or vitamin D in your body. Hypocalcemia can be mild or severe and temporary or chronic (lifelong).
Calcium is an essential mineral that is the key to healthy bones and teeth. How much calcium you need per day depends on your age and sex assigned at birth.
Calcium (af calcis; det latinske ord for kalk) er det 20. grundstof i det periodiske system , og har det kemiske symbol Ca : Under normale temperatur - og trykforhold optræder dette jordalkalimetal som et gråligt metal der er blødere end bly .