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).
Citrate salts are added to foods in the form of citric acid. The amount of citrate added to food daily is about 500 mg per person, according to FDA Database Reviews. Calcium citrate is the preferred source of calcium for fortifying food and drinks.dentification. Calcium citrate is an organic compound made from the calcium salt of citric acid. With a high content of elemental calcium, the kind your body can absorb, calcium citrate is a beneficial supplement, food additive and preservative.