The present invention provides a composition for athletic supplementation, which is used to enhance athletic performance of an athlete； the composition comprises at least balsam pear seed oil and protein, the weight ratio of the balsam pear seed oil to the protein is 1: 1 to 10: 1, and the balsam pear seed oil contains 40 wt% or more of conjugated linoleic acid. The composition can promote the formation of I-type muscle fibers, promote the biosynthesis of corpuscle lines, increase the muscle oxidized fatty acid production capacity, and further improve the body function and exercise endurance of a user. The balsam pear seed oil can also be applied to various functional health-care foods or drinks in various dosage forms for a user to take, and as the balsam pear seed oil is taken from a natural source, no burden is caused to the cardiovascular system and the liver of the human body, and the doubt of the user on the product safety can be reduced.本發明提供一種用於運動增補之組合物，其係用於提升運動員的運動表現；該組合物至少包含苦瓜籽油、及蛋白質，且該苦瓜籽油相對於該蛋白質的重量比為在1：1至10：1之間，其中該苦瓜籽油含有40wt%以上之共軛次亞麻油酸。該組合物能夠促進第I型肌纖維形成並促進粒線體生合成，增加肌肉氧化脂肪酸產能，進而提升使用者的身體機能及運動耐力。還能夠以多種不同劑型形式應用於各種機能性的保健食品或飲品中供使用者服用，並且因苦瓜籽油取自天然來源，不會對人體心血管及肝臟造成負擔，能夠降低服用者對於產品安全之疑慮。
