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).
Common calcium sources There are different calcium sources commercially available for use in food and dietary supplements: inorganic salts such as calcium carbonate and calcium phosphate; and organic salts such as calcium citrate, calcium lactate, calcium lactate gluconate and calcium gluconate.ricalcium citrate (TCC), commonly referred to as calcium citrate, is a high-quality calcium source for food fortification. Its main characteristics are good solubility at low pH, a neutral taste and flavor profile, high calcium content and excellent bioavailability.