Product Description Pure Calcium Carbonate from Nature's Blend delivers 600 mg of calcium carbonate per tablet. Preservative and gluten free. No starch, artificial flavors, wheat, yeast or corn added. Ingredients Calcium 600Mg, Microcrystalline Cellulose, Croscarmellose Sodium, Malto-Dextrin, Acacia Gum, Magnesium Stearate, Silica, Hydroxypropyl Methylcellulose, Titanium Dioxide, Triacetin, Polydextrose