脂肪是人體內含量最多的能量來源，因此本文嘗試探討脂肪攝取對運動表現的影響。經過文獻探討後，本文獲致下列結語：運動員因訓練或比賽而消耗較一般人為多的能量，因此須注意均衡的營養補給，以維持適當的能量來源及身體組成；補充共軛亞麻油酸及魚油，已被認為具有抗氧化、減肥、增加骨骼肌合成和代謝、提升肌力，抗癌、防止動脈粥狀硬化、提升免疫能力等功效，魚油補充也被發現似乎會促進肝醣分解與代謝及提高最大攝氧量，提升疲勞運動後雄性激素的活性狀態，以及調節免疫內分泌功能等；然而，目前的實證研究結果仍不足以確認額外攝取脂肪或補充共軛亞麻油酸及魚油是否會對運動表現具有正面效益。

2Office of Physical Education, Tamkang University, New Taipei City 251, Taiwan More energy are required for athletes during training and competition, the consumption of energy is to satisfy the need of sports training. Lipid is the major energy source in human body and is good for energy production. Consequently, athletes have to maintain appropriate lipid intake for efficient energy supply. This article is the review of food with lipid supply and its relationship with athletes' sporting ability.