The purpose of the present invention is to provide an agent for improving or maintaining QOL, an agent for improving or maintaining physical health, an agent for improving or maintaining vitality, an agent for recovering from fatigue or relieving fatigue, and an anti-fatigue agent.An agent for improving or maintaining QOL, an agent for improving or maintaining physical health, an agent for improving or maintaining vitality, an agent for recovering from fatigue or relieving fatigue, and an anti-fatigue agent, each of which comprises