The present invention provides an anti-fatigue food composition exhibiting an anti-fatigue effect in a form that is easy to ingest. The anti-fatigue food composition comprises an S-allylcysteine. The anti-fatigue food composition suppresses accumulation of fatigue, improves work efficiency, suppresses relaxation degradation and improves concentration.본 발명은 항피로 효과를 발휘하는 항피로 식품 조성물을 섭취가 쉬운 식품의 형태로 제공한다. 본 발명은 S-알릴시스테인을 포함하는 항피로용 식품 조성물이다.