Calcium is the most abundant mineral in the human body, making up about 2% of an adult’s body weight. Calcium is an essential nutrient that plays a vital role in nerve and muscle function. Calcium also assists with enzyme processes and blood clotting. And of course, calcium provides rigidity to bones. The mineral component of bones consists mainly of hydroxyapatite crystals, which are made of calcium and phosphate.

99% of the calcium in the body is found in the bones and teeth; only 1% is found in the blood and soft tissue. Calcium in the blood must be maintained within a narrow range of concentrations; this is so important that the body will actually remove calcium from the bones to maintain this delicate concentration.

Your Calcium Intake

Your Top Calcium Sources

Below are the major contributors of Calcium to your diet. This list is based upon the foods you eat the most, not the amount of Calcium per serving (which is shown for reference purposes only).