The purpose of the present invention is to provide an emulsified food product composition having good fluidity and emulsification stability, even when subjected to heat sterilization treatment, with which gastro-esophageal reflux can be prevented by gelling upon entering the stomach. By adding a gelling agent for gelling in the acidic region, at least one emulsion stabilizer selected from the group consisting of gum arabic and gum ghatti, and a divalent metal salt to the emulsified food product composition comprising a lipid, it is possible to realize the property of gelling upon entering the stomach and obtain good fluidity and emulsification stability, even if a heat sterilization treatment is used.