[Object]An object of the present invention is to provide a QOL improving or sustaining agent, a physical health improving or sustaining agent, a vitality improving or sustaining agent, a fatigue recovery or alleviating agent, or an anti-fatigue agent.[Method for Achieving the Object]A QOL improving or sustaining agent, a physical health improving or sustaining agent, a vitality improving or sustaining agent, a fatigue recovery or alleviating agent, or an anti-fatigue agent containing Lactobacillus ONRICb0240 (FERM BP-10065).本發明係以提供一種QOL改善或維持劑、身體健康改善或維持劑、活力改善或維持劑、疲勞回復或緩和劑、抗疲勞劑為目的。本發明之解決手段為提供一種含有乳酸桿菌ONRIC b0240(Lactobacillus ONRIC b0240;FERM BP-10065)之QOL改善或維持劑、身體健康改善或維持劑、活力改善或維持劑、疲勞回復或緩和劑、抗疲勞劑。