CalAsorb supplies calcium in the citrate form, which is believed to be one of the most easily absorbed compounds of calcium. Three tablets provide a full 800mg of calcium, the recommended daily allowance. Many people's diets may not provide sufficient calcium, and yet calcium plays an important role in maintaining normal, healthy bones. The Department of Health recommends that women have an intake of up to 1200mg of calcium per day, a level that can be hard to achieve through diet alone, especially if dairy produce is limited. Take three tablets daily.