Calcium citrate malate is a water-soluble calcium supplement.

It is the calcium salt of citric acid and malic acid with variable composition.

Calcium citrate malate's bioavailability stems from its water-solubility and its method of dissolution.

When dissolved, it releases calcium ions and a calcium citrate complex.

The European Food Safety Authority has concluded that calcium citrate malate is "slightly more bioavailable" than other forms of calcium supplementation.