Is Calcium Carbonate Gluten Free?

Calcium carbonate is a chemical compound with the formula CaCO3, commonly derived from natural sources such as chalk, limestone, and marble. It is widely used in the food industry for various purposes, including as an anti-caking agent, acidity regulator, or to fortify foods with calcium. While it can be sourced from non-animal materials, it may also be derived from egg shells or animal bones. Therefore, individuals following a strict vegan diet should verify the source to ensure it aligns with their dietary preferences.