PROBLEM TO BE SOLVED: To provide a calcium carbonate complex having improved oil absorption per 1 g of phosphorus.SOLUTION: A calcium carbonate complex of the present invention consists of calcium carbonate and a hydroxyapatite layer formed on an outer periphery of the calcium carbonate, has a molar ratio of calcium to phosphorus (Ca/P) is 1.67-20, and has an oil absorption of 15 ml or more per 1 g of phosphorus.