A large amount of Calcium is needed to keep the body healthy. The basic function of calcium is to keep the bones and teeth strong and healthy. However, calcium also helps in blood clotting, nerve transmission, muscle contraction, and heart rhythm. 99 percent of calcium is stored in the bones and teeth and this amount of calcium covers about 1-2 percent of your body weight. The other one percent of calcium is found in the blood, extra-cellular fluid, and other tissues and cells. It is essential that you consume the recommended daily calcium intake as calcium deficiency can lead to serious health problems. The average daily calcium requirement is 1000 mg. Calcium’s absorption is greatly affected by Vitamin D, so adequate intake of Vitamin D is also crucial in ensuring adequate calcium levels in the body. - See more at: http://www.tasmanhealth.co.nz/articles/calcium