The present invention discloses: a food composition for ameliorating or preventing lifestyle-related diseases that includes fulvic acid as an active ingredient； a food composition for improving liver function that includes fulvic acid as an active ingredient； an anti-fatigue food composition that includes fulvic acid as an active ingredient； a muscle-building food composition that includes fulvic acid as an active ingredient； and a mitochondria activating agent that includes fulvic acid as an active ingredient.本發明係提供一種生活習慣病之改善或預防用食品組成物，其特徵係富里酸為有效成分；一種肝機能改善用食品組成物，其特徵係富里酸為有效成分；一種抗疲勞用食品組成物，其特徵係富里酸為有效成分；一種肌肉增強用食品組成物，其特徵係富里酸為有效成分；及一種粒線體激活劑，其特徵係富里酸為有效成分。
