Provided are: a shelf stable type lactic food which does not undergo brownish discoloration even after the storage at ambient temperature for a long period and a process for producing the lactic food. A brownish discoloration prevented lactic food which is produced by homogenizing a lactic composition that comprises a milk protein a sugar and an emulsifying agent and therefore can become an oil in water type emulsion and which is characterized in that the oil in water type emulsion after the homogenization has a 50% particle diameter of 0.2 1.0 �m.