Food-grade calcium carbonate is a common food additive with several uses, including:
1. **Calcium Fortification**: Added to foods and beverages (like dairy products, plant-based milk, and cereals) to increase calcium content, which supports bone health.
2. **Acid Neutralizer**: Used in antacid products to reduce stomach acidity and relieve heartburn or indigestion.
3. **Food Processing Aid**: Acts as a firming agent in fruits and vegetables, helping to maintain texture during processing and storage.
4. **Anti-Caking Agent**: Prevents clumping in powdered food products like spices, baking powders, and salt.
5. **Colorant and Filler**: Used in some food products as a white pigment or filler for texture improvement, such as in chewing gum or processed foods.