An object of this invention is to provide a QOL improvement or maintenance agent, physical health improvement or maintenance agent, vitality improvement or maintenance agent, fatigue recovery or relaxation agent, and anti-fatigue agent. QOL improving or maintaining agent, physical health improving or maintaining agent, vitality improving or maintaining agent, fatigue recovery or alleviating agent, anti-fatigue agent containing Lactobacillus ONRICb0240 (FERM BP-10065).本発明は、QOL改善又は維持剤、身体的健康改善又は維持剤、活力改善又は維持剤、疲労回復又は緩和剤、抗疲労剤を提供することを目的とする。ラクトバチルスONRICb0240(FERM BP-10065)を含有するQOL改善又は維持剤、身体的健康改善又は維持剤、活力改善又は維持剤、疲労回復又は緩和剤、抗疲労剤。