Calcium Citrate, Highly absorbable organic calcium source

Product Overview: What is Calcium Citrate?

Calcium Citrate, also known as Citric Acid Calcium, is an organic calcium salt formed by the combination of citric acid and calcium ions, with the chemical formula $$\text{C}_{12}\text{H}_{10}\text{Ca}_3\text{O}_{14}$$. It is commonly a white crystalline powder, odorless, slightly soluble in water, with a calcium content of approximately 21%. As a new generation of high bioavailability calcium source, different from inorganic calcium such as calcium carbonate, it has been widely used in food fortification, nutritional health products, pharmaceutical preparations, feed additives and other fields, relying on advantages such as high solubility, mildness and low irritation, and suitability for all groups of people. It is a globally recognized high-quality organic calcium raw material.

Core Features: Why Choose Calcium Citrate?

1. High Bioavailability, Absorption Rate Far Exceeds Inorganic Calcium

Calcium Citrate is an organic chelated calcium that can be absorbed by the intestines without sufficient dissolution by gastric acid. It has ahigh fasting absorption rate, and the overall absorption rate is 22–27% higher than that of calcium carbonate. It is especially suitable for people with insufficient gastric acid, weak gastric motility, the elderly, children and pregnant women.

2. Mild and Low Irritation, Protects Stomach Without Flatulence

Unlike calcium carbonate, which is prone to causing flatulence, constipation and acid reflux, calcium citrate has a near-neutral pH, which is non-irritating and non-burdensome to the gastrointestinal mucosa. Long-term consumption is not easy to cause discomfort, making it the preferred calcium source for calcium supplementation in sensitive groups.

3. High Safety, Compatible with All Dosage Forms

• Food Grade Compliance: Meets international standards such as E333, FAO/WHO, FDA, and can be used in infant food, dairy products, beverages, meal replacements, baked snacks, etc.;
• Multi-dosage Form Adaptability: Good solubility, suitable for almost all dosage forms such as tablets, capsules, powders, liquids, soft candies, chewable tablets, without affecting taste and stability;
• Low Stone Risk: Metabolism can alkalize urine and inhibit calcium oxalate crystallization, suitable for people at risk of kidney stones for long-term calcium supplementation.

4. Multifunctional Applications, More Than Just Calcium Supplementation

In addition to calcium supplementation, calcium citrate can also be used as a food emulsifying salt, chelating agent, buffer, and tissue coagulant; in medicine, it is used for antacid buffering and bone repair materials; in feed, it improves digestion, reduces diarrhea rate, and promotes mineral absorption.

Main Application Fields

1. Food Industry (Food Grade)

• Calcium-fortified Foods: Milk powder, milk drinks, yogurt, cereal, meal replacement powder, energy bars;
• Health Drinks: Electrolyte water, high-calcium fruit juice, plant protein drinks, sports drinks;
• Baking and Snacks: High-calcium biscuits, bread, soft candies, chocolate, nut crisps;
• Functional Additives: Chelate metal ions, stabilize color, and improve texture.

2. Nutraceuticals

• Adult Calcium Supplementation: Prevent osteoporosis, improve bone density, and relieve muscle spasms;
• Pregnant/Lactating Women: Safe calcium supplementation, support fetal bone development, and reduce the risk of gestational hypertension;
• Children/Adolescents: Mild and easy to absorb, help with height development, and reduce calcium deficiency caused by picky eating;
• Middle-aged and Elderly: Suitable for atrophic gastritis, reduce the risk of fractures, and protect cardiovascular health.

3. Pharmaceutical Industry (Pharmaceutical Grade)

• Calcium Supplements: Calcium tablets, chewable tablets, effervescent tablets, oral suspensions;
• Antacids: Relieve excessive gastric acid, protect gastric mucosa, and reduce side effects of PPI drugs;
• Bone Repair Materials: Used for bone defect filling and promoting calcium release in the early stage of bone healing.

4. Feed and Agriculture

• Livestock and Poultry Feed: Improve calcium-phosphorus balance, increase eggshell quality, and promote piglet digestion;
• Aquaculture: Stabilize water pH and promote molting and growth of crustaceans.

Product Specifications and Technical Parameters

• Chinese Name: Calcium Citrate (Citric Acid Calcium)
• English Name: Calcium Citrate
• CAS No.: 813-94-5 (Anhydrous) / 5785-44-4 (Tetrahydrate)
• Molecular Formula: $$\text{C}_{12}\text{H}_{10}\text{Ca}_3\text{O}_{14}$$ (Anhydrous)
• Molecular Weight: 498.43
• Appearance: White crystalline powder
• Calcium Content: ≥21.0%
• Moisture: ≤10.0% (Anhydrous/Tetrahydrate Customizable)
• Heavy Metals: Pb ≤10 ppm, As ≤2 ppm
• Particle Size: 80–200 Mesh (Customizable Ultra-fine Powder)
• Grade: Food Grade (E333), Pharmaceutical Grade, Feed Grade

Why Choose Our Calcium Citrate?

• High Purity and Stable Supply: Strict screening, high purity, low impurities, stable batches, complying with international export standards;
• Full-chain Quality Inspection: Full-process control from raw materials to finished products, providing certification documents such as COA, TDS, MSDS, Halal, Kosher, supporting global export.