Provided are an oil product for imparting a milk-like smoothness and depth, and using a vegetable oil as an ingredient thereof, and a method for producing the same. The present invention pertains to: a vegetable oil-whey protein complex having a whey protein adhered to the surface of a lipid globule of a vegetable oil； a vegetable oil-whey protein complex obtained by contacting a lipid globule of a vegetable oil and a whey protein with one another in an aqueous solution, wherein the ratio of the vegetable oil to the whey protein is 1:0.002-2.5 by weight； and a method for producing a vegetable oil-whey protein complex which involves a step for contacting a whey protein and a lipid globule of a vegetable oil with one another in an aqueous solution.本發明提供賦予如乳般滑順及濃厚感，以植物油脂做為原料的油脂製品以及其製法。本發明係一種乳清蛋白質吸附於植物油脂的脂肪球表面而成之植物油脂-乳清蛋白質複合體，一種於水性溶媒中以植物油脂與乳清蛋白質的比例為重量比1：0.002~2.5之下使植物油脂的脂肪球與乳清蛋白質接觸而得之植物油脂-乳清蛋白質複合體，以及一種包含於水性溶媒中使乳清蛋白質與植物油脂的脂肪球接觸的步驟之植物油脂-乳清蛋白質複合體的製造方法。
