Calcium is the most abundant mineral in the body. Humans need calcium to build and maintain strong bones, and 99%Trusted Source of the bodyâs calcium is in the bones and teeth. It is also necessary for maintaining healthy communication between the brain and other parts of the body. It plays a role in muscle movement and cardiovascular function.
Calcium occurs naturally in many foods, and food manufacturers add it to certain products. Supplements are also available.
Alongside calcium, people also need vitamin D, as this vitamin helps the body absorb calcium. Vitamin D comes from fish oil, fortified dairy products, and exposure to sunlight.
This article looks at why the body needs calcium, which foods are rich in calcium, what happens if the body does not have enough, and the pros and cons of taking supplements.