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 an essential mineral for life. Deficiencies can cause skeletal deformities that worsen with age, irreparable fractures, and even death; a supplemental intake of calcium throughout life 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 bones, acts in carbohydrate metabolism and 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, individuals with higher needs, such as pregnant women, children, and people with intense physical activity. A deficiency can result in neuromuscular disorders, tremors and seizures, digestive and cardiovascular problems.Directions for use:Take 3 to 4 tablets a day, distributed with meals.