The present invention provides a method for producing lactic acid bacteriahavingenhanced immunostimulating activities. Cultivation at a temperature that ishigher than therecommended cultivation temperature of the lactic acid bacteria to be usedincreases the cellwall amount and the cell wall thickness. The immunoregulating activities ofthe lactic acidbacteria improve in correlation with such increase. The method of the presentinventionenhances the immunoregulating functions of lactic acid bacteria withoutrequiring any specialmedium or any special process. This enhancement allows lactic acid bacteriaexhibitingexcellent immunoregulating activities in a human, or products including suchbacteria, suchas foods or drinks, medicines or cosmetics to be provided.
