1. Food & Healthcare Ingredients

• Fortification: Calcium citrate is added to foods and beverages to increase their calcium content, especially in products like cereals, juices, and dairy alternatives, to address calcium deficiencies in the population. 
• Functional Foods: It's incorporated into functional foods, which offer health benefits beyond basic nutrition, to specifically target calcium deficiencies. 
• Food Additive: Calcium citrate serves as a food additive, specifically as a preservative, firming agent, and acidity regulator in products like jams, jellies, and soft drinks.

2. Pharmaceuticals

• Dietary Supplement: Calcium citrate is a popular form of calcium supplement, used to treat and prevent calcium deficiencies. 
• Treatment for Calcium Deficiencies: It's prescribed to address conditions like osteoporosis (bone loss), osteomalacia (weak bones), hypoparathyroidism, and latent tetany.

3. Animal Healthcare

• Bone Health and Growth: Calcium is essential for building and maintaining strong bones and teeth in animals. Calcium citrate is used as a supplement to ensure animals, especially young and growing animals, have sufficient calcium for healthy bone development.
• Feed Fortification: Calcium citrate is added to animal feed to enhance its calcium content, making it a valuable ingredient for livestock and poultry. This supplementation helps prevent calcium deficiencies and related health problems in animals raised for meat or eggs.

4. Personal care

• Buffering Agent: Calcium citrate can help stabilize the pH of cosmetic formulations, preventing them from becoming too acidic or alkaline, which could irritate the skin. 
• pH Adjuster: By influencing the pH, calcium citrate can contribute to the overall stability and effectiveness of a product's formulation. 
• Calcium Source: Calcium is a vital nutrient for skin health, and calcium citrate Is been included in products to help replenish and maintain the skin's calcium levels.

5. Agrochemicals

• Foliar Calcium Supplementation: Calcium citrate is used as a foliar spray to deliver calcium directly to plant leaves. This method is beneficial for rapid absorption and addressing calcium deficiencies in plants.
• Soil Application: Calcium citrate can be incorporated into the soil to improve calcium levels in the root zone. This can help plants better absorb calcium and other nutrients, leading to improved overall plant health and yield. In some cases, calcium citrate can help reduce fruit decay and weight loss during storage.

6. Performance Chemicals

• Intermediate in Citric Acid Production: Calcium citrate is formed during the industrial production of citric acid from fermentation broths. Citric acid in the broth is neutralized with limewater, causing calcium citrate to precipitate out. This solid calcium citrate is then filtered and purified, and can be further processed to obtain pure citric acid.