Presentation and composition: 150 tablets of 800mg, with 100% dolomite. Each tablet provides 124mg of calcium (15.5% RDA) and 70mg of magnesium (23%). Properties: Calcium is a mineral that is absolutely essential for life. Deficiency states cause skeletal deformities that worsen with age, irreparable fractures, and even death. A lifelong calcium supplement is essential to reach maturity with the densest possible bones. Secondly, calcium is essential for the nervous system. Magnesium helps calcium to be deposited in the bones, plays a role in carbohydrate metabolism, and in energy production. Like calcium, it is essential for the transmission of nerve impulses and regulates cell growth. Possible deficiencies are usually due to chronic alcoholism, dietary imbalances, and people with greater needs, such as pregnant women, children, and people with intense physical activity. A deficiency can result in neuromuscular disorders, tremors and seizures, and digestive and cardiovascular problems. Directions for use: Take 3 to 4 tablets daily, divided between meals.