Word Origin & History. critical 1580s, censorious, from critic + -al (1). Meaning pertaining to criticism is from 1741; medical sense is from c.1600; meaning of the nature of a crisis is from 1640s; that of crucial is from 1841.
Calcium citrate is the calcium salt of citric acid. It is commonly used as a food additive (E333), usually as a preservative, but sometimes for flavor.In this sense, it is similar to sodium citrate.alcium citrate is also found in some dietary calcium supplements (e.g. Citracal).
Calcium is the most abundant mineral in your body. It is essential for the development and maintenance of strong bones and teeth, where about 99% of the body's calcium is found.Calcium also helps the heart, nerves, muscles, and other body systems work properly. Calcium citrate: Easily absorbed and digested by the body. 2  It does not contain as much elemental calcium -- the amount your body actually absorbs -- as calcium carbonate. 3  It is more expensive than calcium carbonate. 4  Also, calcium citrate should not be used with aluminum-containing antacids.