Oil or fat composition for foamable oil-in-water type emulsion, and foamable oil-in-water type emulsion containing oil or fat composition

Disclosed are: a foamable oil-in-water type emulsion which has a satisfactorily reduced trans-fatty acid content, can fully utilize the excellent meltability in the mouth of a laurate-type oil or fat, has high emulsion stability and good whip properties including foamability and shape-retaining properties, and can exhibit good freezing/thawing resistance when the emulsion is whipped; and a process for producing the foamable oil-in-water type emulsion. Specifically disclosed is an oil or fat composition for a foamable oil-in-water type emulsion, which comprises a mixed oil or fat and a sucrose fatty acid ester at a specified content ratio, wherein the mixed oil or fat contains a specific triglyceride in a specified amount and the sucrose fatty acid ester has a specified HLB value.