To provide a method for producing a calcium formulation in which generation of foaming during the preparation of slurry is restrained by dispersing a poorly water-soluble calcium in an aqueous solution containing a polyglycerin fatty acid ester.

In this method for producing calcium formulation, the slurry is prepared by dispersing a poorly water-soluble calcium, a polyglycerin fatty acid ester, and a polyglycerin condensed-ricinoleic acid ester in water.