[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).