Over the past decade there has been enormous progress in our understanding of how cells use calcium to regulate their activity.

It can use ammonium, calcium, magnesium or sodium as a base.

Vitamin D helps the body absorb, retain, and use calcium.

Side effects of Vectical include changes in the way the body uses calcium.

The students at the high school here decided to use cobalt and calcium for their experiment that was put aboard the space shuttle Columbia.

Vitamin D is needed for your body to absorb and properly use calcium.

Hence the pre-historic people might have used calcium to paint these symbols.

However, given its modest efficacy, there is no current medical recommendation to use calcium for cancer reduction.

Doctors also use calcium to control high levels of magnesium, phosphorus, and potassium in the blood.

Older people are especially at risk of a vitamin D deficiency and may require supplements to enhance their ability to use calcium.