The present invention relates to a food composition for alleviating symptoms and pain of arthritis on joint of knees including a cetylated fatty acid as an active ingredient, having an effect of alleviating symptoms and pain of arthritis on joint of knees where provided is a food composition for alleviating symptoms and pain of arthritis on joint of knees including a cetylated fatty acid produced by making cetyl alcohol react with fatty acid in an esterification reaction as an active ingredient.COPYRIGHT KIPO 2015본 발명은 세틸화 지방산을 유효성분으로 함유하는 슬관절염 증상 및 통증 완화용 식품 조성물에 관한 것으로, 슬관절염의 증상 및 통증 완화 효과를 발휘한다.