PROBLEM TO BE SOLVED: To provide a lactic acid bacterium immunopotentiative action reinforcement composition reinforcing the immunopotentiative action of lactic acid bacterium having an immunopotentiative action, a method of reinforcing the immunopotentiative action of lactic acid bacterium using the composition, and a composition containing both of the lactic acid bacterium having the immunopotentiative action and the immunopotentiative action reinforcement composition and in which the immunopotentiative action of the lactic acid bacterium is reinforced.SOLUTION: Provided is a composition containing a lactic acid bacterium immunopotentiative action reinforcement composition including lactic acid bacterium having an immunopotentiative action and an ester linkage compound of polyhydric alcohol and saturated fatty acid as effective components.COPYRIGHT: (C)2016,JPO&INPIT【課題】本発明は免疫賦活作用を有する乳酸菌の免疫賦活作用を増強する乳酸菌免疫賦活作用増強組成物及び該組成物を用いた乳酸菌の免疫賦活作用を増強する方法、並びに免疫賦活作用を有する乳酸菌と乳酸菌免疫賦活作用増強組成物の両方を含み、乳酸菌の免疫賦活作用が増強された組成物の提供を目的とする。【解決手段】免疫賦活作用を有する乳酸菌及び多価アルコールと飽和脂肪酸のエステル結合物を有効成分として含む乳酸菌免疫賦活作用増強組成物を含む組成物。【選択図】なし