Calcium Citrates E333
sequestrant, firming agent, nutrient β Primarily synthetic (from citric acid).
Tricalcium citrate (E333iii), Dicalcium citrate (E333ii), Monocalcium citrate (E333i)
CAS: 813-94-5 (i), 5785-44-4 (ii), 7693-13-2 (iii)
Factual Regulatory Reference
This database provides factual regulatory information compiled from official government sources. It does not constitute medical, nutritional, or safety advice. Regulatory status varies by country and is subject to change. Always refer to your local regulatory authority for the most current information.
? Did You Know?
Beyond food, Calcium Citrates is also used in cosmetics, medicine, industrial applications. Its versatility makes it one of the most multi-purpose chemical compounds in everyday life.
In the EU, Calcium Citrates has a "quantum satis" authorization β Latin for "as much as needed." This means there's no specific maximum limit; manufacturers use only what's technologically necessary.
Detailed Regulatory Assessment
European Union (EFSA)
Permitted in various food categories
Official EFSA LinkUnited States (FDA)
Also used as a calcium source for nutrient supplementation
Japan (MHLW)
Compliant with Japanese food sanitation law.
Acceptable Daily Intake (ADI)
International Standard (JECFA)
mg/kg body weight per day
European Standard (EFSA)
Natural Occurrence
This additive is not known to occur naturally in significant quantities.
Manufacturing
Produced by neutralizing citric acid with calcium hydroxide or calcium carbonate. The degree of neutralization and reaction conditions determine which form is produced: monocalcium citrate (E333i), dicalcium citrate (E333ii), or tricalcium citrate (E333iii). Tricalcium citrate is the most commonly used form in food applications.
Applications Beyond Food
Buffering agent and chelating agent in skincare formulations.
Calcium supplement (more readily absorbed than calcium carbonate), antacid, mineral fortification.
Water treatment, pharmaceutical excipient.