Key points about calcium citrate

Calcium citrate is a calcium salt of citric acid, with the chemical formula Ca3(C6H5O7)2. It is a compound that consists of calcium ions (Ca2+) and citrate ions (C6H5O7^3-) in a specific ratio. Calcium citrate is commonly used as a calcium supplement due to its bioavailability and ability to be easily absorbed by the human body. Here are some key points about calcium citrate:

1. Chemical Formula: Ca3(C6H5O7)2

2. Appearance: Calcium citrate is typically found as a white, crystalline powder. It may be odorless or have a faint odor.

3. Solubility: Calcium citrate is soluble in water. The solubility allows it to dissolve and release calcium ions in the digestive system for absorption.

4. Bioavailability: One of the advantages of calcium citrate as a calcium supplement is its higher bioavailability compared to other forms of calcium, such as calcium carbonate. It can be absorbed effectively in the presence of both acidic and alkaline conditions in the digestive tract.

5. Citrate Ion: The citrate ion in calcium citrate is derived from citric acid. Citrate is known to enhance the solubility and absorption of calcium.

6. Calcium Content: The calcium content in calcium citrate is determined by the calcium ions present in the compound. It provides a source of elemental calcium.

7. Synthesis: Calcium citrate can be synthesized by reacting calcium carbonate or calcium hydroxide with citric acid. The reaction forms a complex compound with citrate.

8. Calcium Supplement: Calcium citrate is commonly used as a dietary supplement to address calcium deficiencies. It is available in various forms, including tablets, capsules, and chewable tablets.

9. Absorption: Calcium citrate is absorbed well in the absence of stomach acid, making it a suitable option for individuals with reduced stomach acid production.

10. Food Additive: Calcium citrate is used as a food additive in certain products, such as beverages, to fortify them with calcium.

11. Osteoporosis Prevention: Calcium citrate supplementation is often recommended for preventing or managing conditions like osteoporosis, where maintaining adequate calcium levels is crucial for bone health.

12. Safety Considerations: While calcium citrate is generally considered safe when used as directed, excessive intake may lead to side effects. Individuals with certain medical conditions or taking specific medications should consult a healthcare professional before taking calcium supplements.

Calcium citrate is one of the various calcium salts used as supplements, and its specific advantages, including better absorption under different pH conditions, contribute to its popularity in the healthcare and nutritional industries.