Daily's Calcium Citrate is a form of calcium that has a neutral reaction in the body. Calcium Citrate is a calcium salt of citric acid which is an intermediate in the "Krebs Cycle". This product is also a form of calcium that works well for everyone. Two capsules provide *Elemental Calcium 200 mg. (silicon dioxide, Gluten Free, Soy Free, Vegan) 150 Vegetarian capsules per bottle. ​*Elemental: The Mineral in its Elemental Value is the quantity of that Mineral in its useful and absorbable form i.e. the raw unbound quantity available for absorption.