Calcium, the most abundant mineral in the body, is required for many important functions. About 99% of the body’s calcium is found in bones and teeth, where it is essential for formation and maintenance of strong bones and teeth. The remaining 1% of calcium is found in the blood, muscle and other tissues, and has important roles in blood clotting, muscle function, nerve transmission, and blood pressure. Calcium has been identified as a nutrient of concern in the 2010 Dietary Guidelines for Americans (1). Data from What We Eat In America, NHANES 2009-2010 indicated that 42% of Americans did not meet their Estimated Average Requirements for calcium as recommended by the Institute of Medicine (2). This report presents data on the dietary and supplemental calcium intake of the U.S. population as reported in What We Eat In America, NHANES 2009-2010 and the contribution of foods and beverages to calcium intake.