How much calcium do I need? Adults aged 19 to 64 need 700mg of calcium a day. You should be able to get all the calcium you need from your daily diet.

Why do adults need calcium?

Your body needs calcium to build and maintain strong bones. Your heart, muscles and nerves also need calcium to function properly. Some studies suggest that calcium, along with vitamin D, may have benefits beyond bone health: perhaps protecting against cancer, diabetes and high blood pressure.

Do adults get enough calcium?

The Basics: Overview. Your body needs calcium to build strong bones when you are young and to keep bones strong as you get older. Everyone needs calcium, but it’s especially important for women and girls. Many people, including most women, don’t get enough calcium.