About this ingredient
Calcium is the most abundant mineral in the human body, with most of it stored in the bones and teeth. The body also uses calcium in muscle contraction, nerve transmission, blood clotting and normal cellular signaling.
Dietary calcium comes from foods such as dairy products, fish with edible bones, certain vegetables, fortified foods and some nuts and seeds. Calcium supplements are available in several forms, including calcium carbonate, calcium citrate, calcium lactate and calcium gluconate.
Calcium absorption depends on the chemical form, dietary factors and individual nutritional status. Vitamin D helps the body absorb calcium, which is why calcium and vitamin D are frequently combined in nutritional supplements.