Provided are: an aqueous calcium carbonate suspension which can have excellent calcium carbonate dispersibility and suspension stability without requiring the use of a large amount of cellulose; a dried calcium carbonate composition which is produced by drying the aqueous calcium carbonate suspension; and a calcium-fortified food. A aqueous calcium carbonate suspension characterized by containing 20 to 50% by mass of calcium carbonate, and also containing, as additives, a polyglycerin fatty acid ester, an organic acid monoglyceride and crystalline cellulose in amounts of 12 to 25 parts by mass, 0.3 to 3 parts by mass and 0.3 to 5 parts by mass, respectively, relative to 100 parts by mass of calcium carbonate, wherein the total amount of the additives is 15 parts by mass or more.