Difference Between Calcium Carbonate and Calcium Citrate ...
Mar 21, 2011· Hence the absorption of them is also different from each other. However, the key difference between calcium carbonate and calcium citrate is that calcium carbonate has an alkaline basis whereas calcium citrate has an acidic basis. Reference: 1. "Calcium Carbonate: MedlinePlus Drug Information." MedlinePlus, National Library of Medicine.