The first is the type of calcium used in the supplement. There are several different types of calcium, including calcium carbonate, calcium citrate ... to consider is the dosage.

Calcium, elemental (as citrate) 250mg, Vit. D3 125 IU, magnesium (as oxide) 40mg, pyridoxine (as HCl) 5mg, boron 0.5mg, copper (as gluconate) 0.5mg, manganese (as gluconate) 0.5mg, zinc (as oxide ...

Liquid calcium supplements come in different forms, including calcium citrate, calcium carbonate, and calcium lactate. Calcium citrate is the most common form of liquid calcium, and it is easily ...